Best Crabby in 2026

Cork Borer 12 Set Heavy Duty Nickel Plated Brass Convert your solid stopper into holed-stopper with these easy-to-use borer sets. All borers come with a steel punch to make boring easier. Borer sharpener to keep your borer in top condition sharpens borers up to 25 mm in diameter. Boring diameter 4 to 22 mm. This heavy duty Cork Borer 12 Set Nickel Plated Brass is 9" long with all borers intact & weighs 650 grams.

A cork borer, often used in a chemistry or biology laboratory, is a metal tool for cutting a hole in a cork or rubber stopper to insert glass tubing. Cork borers usually come in a set of nested sizes along with a solid pin for pushing the removed cork (or rubber) out of the borer.

SINGLE FILM, LED, VIEWING AREA 14""X17"", METAL FRAME

Adopt LED light source with life of 50.000 hours With high brightness of more than 4000lux. exclusive for viewing detail image freely.

Light source, layout in equal spaced points, which is more uniform and the uniformity of luminance is above 90%. Individual function for each bank.

Package: 30pcs 25ml clear flat glass test tubes with cork stoppers.

Size: 0.79 inches × 3.9 inches / 20 × 100mm, Volume: 25ml.（Outside Diameter: 0.79in / 20mm; Inner Diameter: 0.71in / 17-18mm; Wall Thickness：0.04in / 1.1mm)

Material: The glass test tubes are made of heat-resistant borosilicate glass.

Product quantity: you can get 100 packs of tapered cork plugs of 10 different sizes (each size for 10 pieces), large in quantity and rich in size selections, easy to meet your diversified using needs, please refer to the pictures for more details

10 Sizes: there are 10 different sizes of wine corks available, 0.35 x 0.24 x 0.39 inch, 0.43 x 0.31 x 0.39 inch, 0.55 x 0.47 x 0.39 inch, 0.59 x 0.51 x 0.39 inch, 0.63 x 0.47 x 0.59 inch, 0.71 x 0.51 x 0.59 inch, 0.75 x 0.63 x 0.78 inch, 0.79 x 0.63 x 0.78 inch, 0.87 x 0.70 x 0.78 inch, 0.98 x 0.74 x 0.78 inch

Conical design: these wine bottle stoppers feature conical design, reasonable and reliable, will not alter the taste of wine, suitable for the application of different sizes of bottle mouth such as grape wine bottle, beer bottle, wish bottle, tube bottle and so on

Size 4 rubber stopper for sealing containers (sold separately)

XX-grade coarse-grained stopper may include some irregularities

Cork for corrosion resistance

Cork Stoppers: Size 4 (XXX Quality)

Top Diameter: 15.8mm

Middle Diameter: 13.6mm

Flask support firmly holds 250-2000 mL round bottom flasks, and its outer diameter is 110 mm.

The flask support Cork is made of high quality cork, very good elasticity, strong heat and electrical insulation, friction resistance.

The Flask support is non-toxic, tasteless, small proportion, not easy to get fire,eco-friendly product.

Sold as a Set of 10

An ideal learning tool

Students can practice graphing skills with this coordinate board

Ample Quantity: the package consists of 44 packs white rubber stoppers with assorted sizes, namely 25 packs for 000#, 8 packs for 00#, 3 packs for 0# and 2 packs for 1#, while 2# to 7#, each size has 1 pack, and you can choose the size you want, enough to meet your daily use and replacement needs

More Sizes to Choose: 000#: 0.51 x 0.67 x 0.31 inches, 00#: 0.59 x 0.87 x 0.43 inches, 0#: 0.63 x 0.94 x 0.51 inches, 1#: 0.75 x 1.02 x 0.55 inches, 2#: 0.79 x 1.06 x 0.59 inches, 3#: 0.9 x 1.06 x 0.67 inches, 4#: 1.06 x 1.1 x 0.75 inches, 5#: 1.14 x 1.1 x 0.87 inches, 6#: 1.3 x 1.14 x 0.98 inches, 7#: 1.46 x 1.18 x 1.14 inches, the tapered solid rubber stopper is compact and useful, they allow you to make final trim according to your needs

Reliable to Apply: the stopper replacement is made of quality rubber material, odorless, firm and sturdy, which is not easy to break, bringing you a nicer using experience

NEOPRENE STOPPERS WITH ONE HOLE || Pack of 10 long lasting neoprene rubber stoppers with a single hole measuring 5mm in diameter

ASTM || Stoppers are manufactured according to sizes recommended by ASTM standards

SIZE #2 || Stopper measures 25mm in length, has a base diameter measuring 16mm, and a top diameter measuring 20mm

Sold as a Pack of 10

What a fun way to practice writing skills

Kids will love these magnetic sentence strips

Sold in each

Brass plated

Borers with handle

CORK STOPPERS || Pack of ten, premium quality cork stoppers

SIZE #6 || Each stopper measures 24mm in length, has a base diameter measuring 13mm, and a top diameter measuring 19mm. Ideal for bottles, flasks and tubes with a mouth/opening measuring 14-18mm in diameter

VERSATILE || Useful for scientific applications, including sealing bottles, flasks and test tubes. Great for household use - for homebrewing, sealing opened wine or beer bottles, spice rack vials, creative projects, DIY corkboards and mats, fishing and more

Function: Designed to prevent damage to your flask or other spherical bottom containers.

Size: 110 in diameter, 30mm in length, this flask support can holds round bottom 250-2000mL Flasks.

Durable: Made of high quality cork, acid and alkali resistance, corrosion resistance, durable to use.

Packaging includes 2pcs 110*60mm lab flask support cork stand.

The flask Support holds a 250-2000 mL round bottom flask with an outer diameter of 110 mm.

Made of high-quality cork, good elasticity, friction resistance, thermoelectric insulation.

【Package & Size】-- 5 different sizes of cork flask holders, each size is 1pcs, please see the picture for the detailed size.

【High Quality Cork】-- Acid and alkali, anti-corrosion ability,Eco-friendly,non-flammable and strong impermeability.

【Multiple Functions】-- Applied to make a flask stand to prevent falling, Waterproof and acid-alkli resistant.

【HIGH-QUALITY MATERIAL】 Select high-quality, environment-friendly and high-density synthetic cork. and the thickness is 30mm/1.18in.

【COMPLETE SPECIFICATIONS】5 different sizes of cork flask holders, Providing excellent support to 10ml - 2000ml round bottom flasks.

【HIGH QUALITY CORK FLASK HOLDER】Featured with acid and alkali resistance, heat resistance, heat insulation.Order with confidence and enjoy.

【HIGH-QUALITY MATERIAL】 Select high-quality, environment-friendly and high-density synthetic cork. and the thickness is 30mm/1.18in.

【COMPLETE SPECIFICATIONS】4 different sizes of cork flask holders, Providing excellent support to 250ml - 1000ml round bottom flasks.

【HIGH QUALITY CORK FLASK HOLDER】Featured with acid and alkali resistance, heat resistance, heat insulation.Order with confidence and enjoy.

Use for Flasks: 50ml - 250ml; Inner Diameter: 24mm / 0.94inch; Dimension: 80 x 30mm / 3.15 x 1.18inch (D*H)

Providing excellent support to 50ml - 250ml round bottom flasks, convenient and practical.

Made of cork material, Good elasticity, Large Friction coefficient, Strong heat and electrical insulation.

CORK STOPPERS || Pack of ten, premium quality cork stoppers

SIZE #9 || Each stopper measures 29mm in length, has a base diameter measuring 18mm, and a top diameter measuring 24mm. Ideal for bottles, flasks and tubes with a mouth/opening measuring 19-23mm in diameter

VERSATILE || Useful for scientific applications, including sealing bottles, flasks and test tubes. Great for household use - for homebrewing, sealing opened wine or beer bottles, spice rack vials, creative projects, DIY corkboards and mats, fishing and more

Made of high quality rubber, good sealing, durable and long service life.

High elasticity, good insulation and sealing performance, high temperature resistance, acid and alkali resistance, and will not dissolve and swell in acidic liquids.

Not easy to deform, moderate hardness, manufactured according to standards, environmentally friendly materials.

CORK STOPPERS || Pack of ten, premium quality cork stoppers

SIZE #10 || Each stopper measures 31mm in length, has a base diameter measuring 20mm, and a top diameter measuring 25mm. Ideal for bottles, flasks and tubes with a mouth/opening measuring 21-24mm in diameter

VERSATILE || Useful for scientific applications, including sealing bottles, flasks and test tubes. Great for household use - for homebrewing, sealing opened wine or beer bottles, spice rack vials, creative projects, DIY corkboards and mats, fishing and more

Cork Borer 12 Set Heavy Duty Nickel Plated Brass Convert your solid stopper into holed-stopper with these easy-to-use borer sets. All borers come with a steel punch to make boring easier. Borer sharpener to keep your borer in top condition sharpens borers up to 25 mm in diameter. Boring diameter 4 to 22 mm. This heavy duty Cork Borer 12 Set Nickel Plated Brass is 9" long with all borers intact & weighs 650 grams.

A cork borer, often used in a chemistry or biology laboratory, is a metal tool for cutting a hole in a cork or rubber stopper to insert glass tubing. Cork borers usually come in a set of nested sizes along with a solid pin for pushing the removed cork (or rubber) out of the borer.