The Kramp HSS3206B is a genuine Kramp dual wall heat shrink sleeve designed for robust electrical insulation and sealing. Made from durable black polyolefin, it features an initial inner diameter of 12.7mm, shrinking to 4.2mm with a 3:1 ratio. This 2.5-meter sleeve includes an internal adhesive layer for enhanced environmental sealing and protection against moisture and corrosion. It operates within a temperature range of -55 to +125 °C and has a dielectric strength of 15 kV/mm.