Roll of 50 ft. For ballistic doors, hatches and scuttles. Rectangular profile with 2 chamfered corners (3/16" x 45°) and a rectangular channel (5/8" wide x 5/16" deep). 1-1/4" wide x 1/2" thick. 30 durometer. A-A-59588 class 3B grade 30 (supersedes ZZ-R-765). Ships in 1-2 weeks after receipt of order.