?Package Included?You will get 1 roll silver aluminum foil tape. Dimensions: 2 inches wide, 65 feet long and 3.9 mil thickness. If you have any questions about our duct metal tapes, please feel free to contact us. We will get back to you within 24 hours, and give your a satisfied solution. ?Premium Silver Aluminum Foil Tape?Our such silver aluminum tape has good waterproof performance, UV resistance, moisture resistance, heating / heat resistant, corrosion resistance, anti-aging, insulation, flame retardant, sealing seams. The dryer vent tape performs well in any type of weather! This aluminum tape is your superior choice. Works great for this heavy duty duct tape. ?3.9mil Thickness Aluminum Foil Tape?If the metal aluminum foil tape is too thin, the HVAC air duct tape will break easily, and if insulation tape is too thick, the heavy duty tape will be difficult to fit the pipe surface wrapping. The aluminum tape of 3.9mil thickness is moderate and perfect for use. So our 3.9mil foil tape is not easy to break, high quality and affordable. It's easy to separate, just rip it apart lightly. Better insulation and more tear resistance. The aluminum tape itself does not wrinkle and curl, making it easier for the ducting work and saving you time. ?Strong Adhesion?Our metal tape with adhesive backing is made of high quality pressure sensitive adhesives. So, this aluminum foil tape has stronger sticking, easier tearing, leave no trace without residual glue. This metal insulation tape is very fit for kitchen with heat resistant, moisture resistant, and waterproof. Provide you with excellent adhesion and stability under low and high temperature conditions (long-term temperature resistance: 120?, short-term temperature resistance: 350?). ?Wide Applications?Aluminum tape with adhesive backing is suitable for sealing, repairs and patching HVAC air duct system, wrap pipes insulation, waterproof sealing aluminum, sealing hot and cold air ducts, dryer vents, heavy duty ducts tapes, stainless steel and plastic joints/joints, temporary repair of metal surfaces, fixing hose and copper pipe, etc. Aluminum foil tape is suitable for smooth flat and irregular surfaces.