Fastest and most secure way to wrap wire harnesses for marine applications. Heat activated adhesive lining provides an insulated, sun proof, waterproof covering. Shrinks to 1/3 of its original size at 257 degree F. Includes: 15 pc 1/8" D x 3-1/2" L, 10 pc 3/16" D x 3-1/2" L, 8 pc 1/4" D x 3-1/2" L, 4 pc 3/8" D x 3-1/2" L, 3 pc 1/2" D x 3-1/2" L, 2 pc 3/4" D x 3-1/2" L. Ul and cul listed.