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 Piece 1/8-Inch D x 3-1/2-Inch L, 10 Piece 3/16-Inch D x 3-1/2-Inch L, 8 Piece 1/4-Inch D x 3-1/2-Inch L, 4 Piece 3/8-Inch D x 3-1/2-Inch L, 3 Piece 1/2-Inch D x 3-1/2-Inch L, 2 Piece 3/4-Inch D x 3-1/2-Inch L. Ul and cul listed.