"The Mystery of Lyle and Louise"

Superior Grade Rubber Offers Softness, Resiliency, and Durability.

One Pound of One-Hole Rubber Stoppers in Various Sizes.

Versatile neoprene stoppers perfect for every laboratory.

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

One Pound of Two-Hole Rubber Stoppers in Various Sizes.