About this item Complete Light Blockage: Our white weather stripping features a dark gray foam core, effectively blocking all light from entering around your door. Please ensure your door jamb has a groove for kerf-style weather stripping installation Extra Long Coverage: With a total length of 40 feet, this weather stripping is ideal for various door sizes. Designed with a 5/32 inch spine, it fits 1/8 inch grooves and seals gaps from 1/4 inch to 1/2 inch. Measure groove size before purchasing Durable PVC Flange: Our kerf door seal includes a rigid PVC flange for secure attachment to grooved door frames. The tear-resistant PE cover and high-resilience PU foam provide long-lasting durability and flexibility, ensuring a consistent seal in all temperatures Hassle-Free Installation: No adhesive needed—simply measure, cut, and insert the flange into the groove for a tight seal that stays in place Versatile Protection: Perfect for replacing old weather stripping, it blocks noise, light, rain, dirt, wind, and more. Keep your home warm in winter, cool in summer, and reduce energy costs › See more product details