18-70mm Diameter Range
The rings are cut from the same stopper, each ring fitting perfectly inside the next.
The stoppers are ideally suited for glass working operations and chemistry labs.
The serviceable temperature range is from -100 C to +450 F.
Better aging characteristics and are resistant to oils, solvents, ozone and hydrocarbons.

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 3.4 inch
Height : 1.3 inch
Length : 4.8 inch

Item Weight: 0 ounce (View shipping rates and policies)
Shipping Weight: 5.28 ounce (View shipping rates and policies)

ASIN : B006W1FHWW