Sponge rod is used for shimming and bolstering worn and shrunken weatherstrip around doors and trunks. It can also be used for convertible top headers. This 1/2" diameter round rubber cording is to be covered with your own fabric for windlace or large welt cord. Sponge rubber rod is available in 3/8" and 1/2".
1/2" is sold by the yard, 50 yd. box, or a 250 yd. box.