"Activités de comprehensive"

Solid, 1-Hole, 2-Hole, and 3-Hole Stoppers in Assorted Sizes.

A convenient assortment for student use.

A superior grade of rubber that has softness, resiliency, and durability

Bag of 100 corks of various sizes.

Superior Grade Rubber Offers Softness, Resiliency, and Durability.

One Pound of Solid Rubber Stoppers in Various Sizes.

These stoppers are made of a superior grade of rubber that has softness, resiliency, and durability.

An outstanding advance in rubber stoppers, four stoppers in one reduce inventory confusion and cost.

Regular length, XX quality corks in convenient assortments for laboratory use. Packaged with equal amounts of each size.

These foam plugs are designed to fit most test tubes and vials.