Quick view Cork Borer With Plastic Handle, Set Of 6 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... $26.50 Add to Cart Compare
Quick view Natural Cork Stopper, 16pc Assortment Natural cork stopper for craft, science experiments and cap for glass bottles. $3.95 Add to Cart Compare
Quick view Rubber Stopper, 1 Hole (Select Size) An excellent grade of rubber. Low sulfur content. Size numbers are molded into the top. Each piece has one hole at the center with diameter of approximately 3mm.Measurements:Top Diameter(mm) x Bottom Diameter(mm) x Length(mm). Note that each size has... $9.00 Choose Options Compare
Quick view Rubber Stopper, 2 Hole (Select Size) An excellent grade of rubber. Low sulfur content. Size numbers are molded into the top. Each piece has one hole at the center with diameter of approximately 3mm. Measurements:Top Diameter(mm) x Bottom Diameter(mm) x Length(mm). Note that each size... $4.75 Choose Options Compare
Quick view Rubber Stoppers, Solid(Select Size) An excellent grade of rubber. Low sulfur content. Size numbers are molded into the top. Each piece has one hole at the center with diameter of approximately 3mm. Measurements: Top Diameter(mm) x Bottom Diameter(mm) x Length(mm). Note that each size has... $6.00 Choose Options Compare
