Sound Insulation Door Seal Strip with Strong Adhesive for Front and Back Doors. Triple-Layer Sealing: High-density brush structure provides enhanced noise reduction and thermal insulation. Easy DIY Installation: Self-adhesive design requires no tools or punching for quick, damage-free application. Multi-Function Protection: Waterproof, soundproof, pest-proof, and rat-proof features for comprehensive door sealing. OEM/ODM Support: Customization based on drawings or samples; factory direct cooperation solutions available. Durable Material: Made of PVC and brush, more durable than traditional foam or rubber strips. Flexible Sizing: Available in 10mm*90cm and 20mm*90cm; color options include White and Brown. Free Samples: Free samples provided to test quality before placing bulk orders. Certified Quality: Factory holds IATF16949, ISO14001, and OHS18001 certifications for reliability.