Drum Heater Blanket 1251740(Pemanas drum model blanket) Material : Flexible Silicon rubber Size Width x Length : 125 x 1740 mm Thickness : 1.5mmFit Drum Size : 200 L Heating Power : 1000W Input Voltage : lt;240VAC Maximum temperature of 120C The use temperature : 30 to 150C Insulation resistance : gt;= 5 Mohm Compressive strength : 1500V / 5SWithstand voltage : gt; 5 KV This heater is controlled by a an adjustable thermostat.Flexible springs are used to attach the silicon heater around various diameter drums.The springs can stretch up to about 3 inches.For plastic drums, it is recommended to keep the thermostat set below 37C