ECO-FRIENDLY MATERIAL - Our door weather strip made of high density EPDM foam with longer life span than typical foam strips. The gasket is cut from high resilience foam. not easy to deform while using. PACKING with 2 rollers - each roller door weather strip can divide it to 2 joints. Each joint 4 meters (13ft). total 16 meters (52ft). enough for about 3 doors or 4 windows. This time strip can seal the gap of 3.5-5.5mm. Stronger Grid ADHESIVE - tear off the yellow protective film and then stick it up. give your doors and windows long lasting sealing protection. Stick firmly. leaves no lasting residue and won't cause any damage to your furniture Multi-Function and High Performance - D-ring design of door stopper effectively reduces noise. Strong resistance after extrusion. good for anti-collision. Windbreaker. quench the dust. weatherproof and insect proof. WIDE range of use - widely used in all kinds of sliding door. sliding window. security door. Can also be used as a cabinet/fridge/freezer door seal. Wide range of applications on marine cases. automotive and domestic.