Material: silicon Working temperature: -60~200 degree celsius ID size: 0.8~18mm Thickness: 0.5(2.5kv), 1.0(4.0kv), 1.5(6.0kv), 2.0mm(7.0kv), others are available Certificate: SGS, Rohs Application: industrial grade, and food grade , it can be installed in Coffee maker, electric water bottle, or used in electric insulation etc.