... --30mm Breakdown voltage: 1.5kv, 2.5kv, 4kv colour: white, red, black, yellow Silicone rubber sleeve is made of high-quality silicone ... and advanced technical. It is soft, proof tore, high insulating performance, wear and high temperature resistance, flame retardant and stable performance characteristics ... -260 colour: white, yellow, black, red, etc silicone rubber coated fiberglass sleeving (2752)