Easy to operate: excluding explanation, but most machines only need a knife to install. When PTFE has warning or discoloration, you can try to replace the old elements with a better bag sealing function Packaging content: You get 10 pulse dense seal heating elements and 10 PTFE (cloth), which is enough to meet your requirements and replace High-quality materials: Heating elements are made of - alloy, with high resistivity, good oxidation capacity, high temperature level, rapid heating, durability, and not easy to and long-term service life. The size of the : the size of the backup and maintenance parts is about 200 mm in length and a width of 2 mm. It is suitable for most (but not all) seals marked with "8 -inch". Applicable situation: Applicable to most models of 200 machines, such as F-200, -200, -200 and more machine compatibility, Weight: 0.08377565956 pounds, Manufacturer: Xnuiasqe