Features: The tape consists of two layers, which are adhesive (inner layer of butyl rubber) and film (outer layer of polyethylene). Tapes specifications: 1) T-365 with 0.65mm / 25mil thickness and 50 - 230mm width 2) T-380 with 0.76mm / 30mil thickness and 50 - 230mm width 3) T-3100 with 1.02mm / 40mil thickness and 50 - 230mm width 4) T-3130 with 1.27mm / 50mil thickness and 50 - 230mm width 5) Thickness: 0.40mm - 1.30mm 6) Width can be 50mm, 75mm, 100mm, 150mm, 230mm 7) Length: 30 - 200m