The Silicone Round Cord from Grainger is a flexible, durable silicone cord that can withstand temperatures from -100 to 500°F. It has a round cross-section and comes in multiple diameters from 1/16 inch to 3/4 inch. The cord is made from platinum-cured silicone which provides excellent resistance to weathering, aging, moisture, and UV rays. With the ability to tie knots without weakening, this silicone cord has many potential uses including automotive, HVAC, marine, outdoor equipment, and more. The cord comes in standard lengths of 25 feet and 50 feet.