The Screen-Tight Vinyl Cap Component snaps into the base to securely tighten the screen and complete your installation. Designed for quick and easy rescreening, the cap temporarily pops off, allowing efficient screen replacement. Made from UV-resistant window-grade vinyl, this cap never needs painting and offers long-lasting durability. Available in 8 ft. lengths, it's compatible with 1-1/2 in. wide caps and easily attaches to 2x4 or 4x4 wooden frames.