1. Package includes: door seals with a total length of 8 m (26.25 ft), width: 10 mm, thickness: 6 mm, suitable for gaps from 3.5 to 5.5 mm. The door and window seals have strong adhesive, stick firmly, thermal insulation in summer and cold insulation in winter, providing you with a comfortable environment. 2. Rubber Materials: The sealing tape self adhesive is made of quality rubber, odorless, bounces well when pressed, which reduces damage to doors and windows. Rubber seal is corrosion resistant and resistant to and low temperatures, will not harden, not easy to age, long service life, cost effective. 3. Insulation and Sound Protection: The door seal sealing tape self adhesive has the functions of windproof, dustproof, sound insulation, insect proof, waterproof, and shockproof, prevents cold air and sound from gaps around doors and windows from penetrating, helps to keep a comfortable environment in winter. 4. Easy to Install: Before use, measure and clean the door and window and trim as needed. Caulking tape has a strong adhesive on the back, just tear off the red film on the surface and stick, done. After an adhesive time of 24 hours, the door seal is very firm and does not fall off.