Following are some of the generally band heaters, please click on the size(IDxH) to move tothe correct specification page. DiameterHeight 25mm:25-35mm40-50mm 30mm:25-35mm40-50mm 35mm:25-45mm50-70mm75-85mm90-100mm40mm:25-45mm50-70mm75-85mm90-100mm42mm:25-45mm50-70mm75-85mm90-100mm45mm25-45mm50-70mm75-85mm90-100mm50mm:25-45mm50-70mm75-85mm90-100mm55mm:25-45mm50-70mm75-85mm90-100mm60mm:25-45mm50-70mm75-85mm90-100mm65mm:25-45mm50-70mm75-85mm90-100mm70mm:25-45mm50-70mm75-85mm90-100mm75mm:25-45mm50-70mm75-85mm90-100mm80mm:25-45mm50-70mm75-85mm90-100mm LJXH Household Electrical Appliances 110W/130W/150W Heating Element Height 40mm/45mm/50mm Ceramic Band Heater Inner Dia. 30mm Specification:Product Name: Stainless Steel Band HeatersMaterial: Stainless Steel, CeramicVoltage: 220V/110V/380VInner Diameter: 30mmHeight (H): 40/45/50mmPower: 110W/130W/150WMax working temperature: 300-400 centigrade How to make your intellect up appropriate band heater Inner Diameter?Use a rope to measure your kit circumference, and use a tape measure the rope total length (C) . Then D=C/3. Package Contents:1PC Band heater Custom-made accepted:If you don't find out the right size in our store, please touch with us for custom-made. Please provide band heater:1) Band Heater Inner diameter (or package circumference)2) band heater height(or width)3) Voltage/Power4) Quantity