Insulator:Silicone Rubber Standard :UL1441/FDA.Features:1) Temperature range: -60oC~ +200oC.2) Rated voltage: 300V-600V.3) Colors: transparent, white, black, red, blue, yellow, green, brown..Applications:Widely applied for home appliances, electric instruments,medical unit and more at the high temperature conditions Silicone Rubber Tube