Two rolls of 20 meters, length: 10 meters (26 columns. The double width in the picture is 4, two rolls of 20 meters. The adhesion is very good and the sealing is very good. Sealing tape can prevent cold wind, noise and dust It is very simple to install the seal, no tools are needed except Scherre. Fix the Scheere sealing tape to the proper length, glue it up, and you're done. You have the front window frame clean and sealed in the correct position. Product Features: Save up to 40% of heating costs, self-adhesive shelf life: 15 years of extremely high weather resistance, UV and ozone resistance, high temperature resistance -50C to +60C, impervious to air and water, and easy to clean. Material: EPDM, silicone, PVC Shape: D profile sealing tape Length: 10 meters 2 Color: white Weight: 150g Dimensions (approximately): 9 x 6 mm. Advantages: Suitable for doors and window frames. Waterproof, windproof, and anti-aging properties are excellent. Easy to cut and easy to install, no special tools are required. Prevent dust from accumulating between sliding doors or windows to reduce outside noise and the slamming of sliding doors to ensure a quiet and comfortable living environment. Resist rain and cold wind, giving people a clean and warm environment. Protect windows and doors and reduce wear and tear when opening and closing windows/doors.