... voltage: 1.5kv, 2.5kv, 4kv colour: white, red, black, yellow Silicone rubber sleeve is made of high-quality silicone rubber ... .5kv, 2.5kv, 4kv, 7kvTemperature range: -60-260 colour: white, yellow, black, red, etc silicone rubber coated fiberglass sleeving (2752)