Adhesive Lined Dual Wall Black/Red Heat Shrink. Shrink Ratio 3 : 1, waterproof, RoHS Compliant. 89mm cut lengths, sizes: 3.2mm, 4.8mm, 6.4mm, 7.9mm, 9.5mm, 12.7mm, 19.1mm in Red/Black. Material: polyolefin; max electrical rating: 600V. Shrink temperature starts at 70°C, shrunk totally at 120°C.