Ansen Tools AN 237 Heat Shrink Wire Wrap Sleeve Assortment, 127 Piece 7 popular assorted sizes Professional grade tubing Protects cable and wire from water, rust and corrosion Shrinks up to 50% in diameter for water tight seal Sizes include: 30 pc 2.0 x 40mm 25 pc 2.5 x 40mm 20 pc 3.5 x 40mm 20 pc 5.0 x 50mm 16 pc 7.0 x 8mm 8 pc 10.0 x 80mm 8 pc 13.0 x 85 mm