Key benefits Thicker, tighter door and window closure: fills gaps to reduce drafts and improve sealing when the door or window is closed. Custom fit for any opening: scalable material can be trimmed to the length you need, so it adapts to different door and window sizes. Fast, tool installation: selfadhesive backing sticks to the sides of doors and windows for a secure fit. Multifunctional protection: acts as a firm strip to provide waterproof, dustproof, windproof and soundproofing performance. What it does and why you need it Seals gaps along door and window edges to prevent air leakage, dust entry, water splashes, and reduce noise transmission. Scalable material allows you to cut the strip to the exact length required, so you get a neat, continuous seal without gaps or overlaps. Selfadhesive design speeds installation and avoids drilling or screws, preserving frames and finishes. Key features Function: makes door or window closing thicker and more secure, improving sealing performance. Compatibility: adjustable length for different door and window sizes; can be trimmed to match your opening. Size & fit: scalable material for precise length adjustment; designed to be mounted on the sides of doors and windows. Material: flexible, scalable sealing material with an adhesive backing for direct application. Performance: firm strip designed to be waterproof, dustproof, windproof and soundproofing. Installation (simple steps) 1. Measure the vertical or horizontal edge where you want the seal. 2. Cut the scalable material to the measured length. 3. Clean the mounting surface, peel the adhesive backing, and press the strip along the side of the door or window for a secure bond. Typical applications Front door draft reduction: apply to the door edge to block cold air and reduce heating costs. Bathroom or kitchen window sealing: prevent water splashes and moisture from entering gaps around windows. Bedroom or office sound reduction: install on window or door sides to improve privacy and reduce noise transfer. Practical notes Trim to exact length for sealing results. Ensure the mounting surface is clean and dry before applying the adhesive. Intended for use on the sides of doors and windows as a sealing strip to improve closure and protection. A straightforward, adjustable sealing strip that improves door and window closure and provides waterproof, dustproof, windproof and soundproofing protection.