3M Heat Shrink Cable Breakout Boot 2 insulates and seals cable breakouts in multi conductor armored or sheathed cables. This heavy duty boot offers good electrical and mechanical protection. The cross linked, MIL I 81765 1 qualified polyolefin construction is semi rigid and flame retardant.3M Heat Shrink Breakout Boot has an internal coating of adhesive that ensures reliable environmental sealing of cable breakouts in cables and conduit ends. RoHS 2011/65/EU Compliant.