"WardsSci000559"

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

Each package contains 100 corks of assorted sizes in the range indicated.

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

Molded of heavy flint glass with thick top and base flange ground to ensure a tight seal.

XXXX Quality Corks have a fine grain and are ideal for use as tight-fitting stoppers.

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

One Pound of Solid Rubber Stoppers in Various Sizes.

Size Top Diameter Bottom Diameter

Size 1 11.1 mm 8.3 mm

Size 2 12.7 mm 9.5 mm

Size 3 14.2 mm 10.7 mm

Size 4 15.8 mm 11.9 mm

Size 6 19.0 mm 14.6 mm

Size 20 41.2 mm 34.0 mm

Superior Grade Rubber Offers Softness, Resiliency, and Durability.

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