Hookless shower curtain innovative replacement liners snap directly to the curtain below the sheer window for a cleaner appearance and easy removal for cleaning. Traditional liners require double hooking with the shower curtain along the rod, a high, cumbersome process that leads to sagging material, snags, and tears. For use with hookless curtains with a window it's a snap curtain liner is specially designed to snap in quickly and easily and out of hookless curtains to streamline installation and cleaning. For use with hookless curtains.