The HSEC0.5-X Crosslinked Polyolefin Heat Shrink End Cap features an adhesive lined inner wall that seals and provides excellent protection against moisture. Applications include insulating and protecting wires and cables in wet locations. Voltage rating of 600 V. Shrink ratio: 2.5:1 (HSEC). Temperature range: -40°F to 257°F (-40°C to 125°C). Cross-linked Polyolefin. 0.47" (11.9 mm) minimum expanded I.D. Color Black. 10 per package.