Feature:effectively reduce noise,soundproof,windproof,dustproof,waterproof. Dense and elastic velor blocks uneven gaps in a balanced way and does not influence not the movement of doors and windows. Suitable for 2.5mm - 4.5mm wide gap of doors or windows. Please check the window or door gaps first. Widely used in a variety of sliding windows, sliding doors, security doors, wardrobe doors, etc., to reduce damage to your doors and windows Make sure the surface is clean and free of dust before applying, and lightly press down when finished. Color: silver gray Size: 5 meters long Bottom width 9 mm * thickness 5 mm. Quantity delivered: 1 piece Product dimensions are all measured by hand, there are errors and the actual product shall prevail. Product color is affected by shooting light view and there is a slight color difference, which depends on the actual product received.