Size: 9x6mm (0.35x0.24 inch), suitable gap: 2-7mm (0.08-0.26 inch). 1 pack includes 2 seals (2.5m x 2). Total 2 packs, 33 feet long (2.5m x 4). Can be separated into single seals for narrow edges. High-quality seal strip made of evenly foamed EPDM with smooth interior and exterior surfaces. Offers excellent flexibility, high resilience, and superior durability. Features a unique grid adhesive backing designed for doors and windows, providing strong adhesion and long-lasting protection. Multi-functional use: helps prevent wind, dust, noise, insects, and cold air. Protects windows and doors, reduces wear during opening and closing, and provides waterproof and windproof performance. Offers excellent resistance to aging. Wide application: suitable for various sliding windows, sliding doors, security doors, closet doors, and more. Helps reduce damage to doors and windows. Provides protection against cold, noise, rain, wind, and snow, contributing to a warm and comfortable environment.