- Size & Compatibility : 1/4" x 1/4" x 20ft (6mm x 6mm x 6100mm); ideal for gaps ranging from 0.08" to 0.16" (2-4mm). - Material : Constructed from high-quality polypropylene fiber, this weather stripping brush is thick and soft, ensuring minimal noise and deformation. It offers low friction and excellent resistance for long-lasting performance. - Easy Installation : Designed for user-friendly installation, simply insert the brush directly into the groove for a hassle-free fit. - Sealing Effectiveness : Ideal for sliding doors and movable windows, it provides reliable sealing capabilities to enhance insulation and protect against drafts. - Customization & Flexibility : Easily cut this weather stripping to any desired length with scissors or a blade. Its flexible design allows it to bend and conform to various shapes, ensuring a secure and efficient fit. - Practical Applications : 1. Sliding Doors : Prevent drafts and enhance energy efficiency by sealing the gaps of patio or balcony doors. 2. Windows : Use it to insulate PVC windows, reducing outdoor noise and promoting soundproofing. 3. Garage Doors : Install it on garage door tracks to minimize wind entry and maintain a stable indoor temperature. Choose this slotted silicone wool aluminum alloy window seal strip for an effective solution to your insulation and soundproofing needs, ensuring comfort in your home all year round.