1、It is designed with plug connection, making connecting stable and firm, reducing the trouble of replacing the heater tube. 2、Cartridge design, high sensitivity and quick response. 3、Adopts heat sensitive materials, transmit heat quickly. 4、The number of coils varies depending on the power, and provide a great uniform distribution of heat, which considerably increases the long life of the heater as well as prevents the oxidation of the heater wire even at high temperatures. 5、Easy to install, without needing to disassemble. Features: 1. It is designed with plug connection, making connecting stable and firm, reducing the trouble of replacing the heater tube. 2. Cartridge design, high sensitivity and quick response. 3. Adopts heat sensitive materials, transmit heat quickly. 4. The number of coils varies depending on the power, and provide a great uniform distribution of heat, which considerably increases the long life of the heater as well as prevents the oxidation of the heater wire even at high temperatures. 5. Easy to install, without needing to disassemble. Specifications: Material: Stainless Steel Color: Red Type: Cartridge heater Optional Voltage: 12V, 24V Optional Power: 30W, 40W Size: Approx. 6*20 mm/ 0.24*0.79 inch Cable Length: 1m/ 39.37 inch Packing List: 1 * 3D Printer Heating Tube