-Sized Abrasion-Resistant Black Rubber Plugs
is for a set of (3) rubber plugs, as pictured.
Part# 9545K119

Size 5

Size is as follows:

Large End: 1-1/16"

Small End: 29/32"

Height: 1"

is for a set of Three (3).

Use these SBR - rubber plugs for abrasion and water resistant laboratory stoppers.   

Durometer is 40A.

A durometer scale is  a type of measurement 

For rubber material hardness.

Maximum temperature is 200° F.