Features: 1.Material:Made of iron chromium alloy and high-temperature cloth. 2.Heater Wire Size: 7.9 inches (20 cm)./11.8 inches (30 cm)./15.7 inches (40 cm). 3.Compatible with sealers that are used to seal a variety of film materials such as vinyl and polyethylene. 4.If the tape is burned, it is easy to cause defects such as it cannot be welded cleanly, the heater will cut off, and the internal components are prone to breakage. Since regular changes are required, it is recommended to have more as a spare. Package Included: heater wires/5 High temperature cloth/5 Please check the tracking information on teacking website Please contact us by message,e-mail,or trade manager Check the package and item carefully All sales are considered final. If merchandise you received is defective or damaged in the long transit, please contact us freely. We will give you a satisfying solution ASAP. If other reason, you want to ship it back to us, buyer will be responsible for the returning / fee and we will send the replacement after receiving the returned item. Item will be sent out within 24-72 Bussiness hours after payment confirmaiton.(Excluding Weekend / Holiday).If you have request such as color,address and so on,please just leave us message,then we will arrange it as your request. We ship to alipay confirmed address ONLY. Please confirm your address in alipay is matched with your / address before you pay