Dear customer, Thank you for choosing our products. If there is any problem with our products, please contact us through the order information. We will be happy to serve you and solve it for you as soon as possible within 12 hours, thank you Durable: The package includes 2 different size tape, strong, not easy to crack, very durable. Premium Material: PTFE tapes are made from high quality fiberglass fabric, resistant to abrasion, pressure, corrosion, high temperature, low friction, good insulation and to a smooth non-stick surface. High Temperature Resistance: Teflon tape has high temperature resistance and can withstand long-term high temperature, the temperature can reach 300 degrees, fine workmanship. Good Adhesion: Our tapes with self-adhesive, it can be affixed to various surfaces easily, without leaving adhesive residue. Teflon tape for vacuum sealer machine is convenient to use. Wide Usage: Our PTFE tape/teflon tape can be used for chute, hopper, aviation mold, etc., also can be used in sizing machine roll, thermoplastic stripping and other industries