Prevents air leaks and improves efficiency. Withstands temperatures up to 1000 degree F (538 degree C). For use with stoves, fireplaces, furnaces. Size: 1/2" x 6' Prevents air leaks and improves efficiency Withstands temperatures up to 1000 degree F (538 degree C) Includes a 59 ml (2 fl. oz.) bottle of gasket cement Fo