Daystar's Locking D-Ring Isolators stop the annoying rattles and the built-in lanyard ensures that you never lose a D-Ring again! The Locking D-Ring Isolator snaps on to any standard 3/4 in. D-Ring (also known as a clevis or shackle) and keeps it from banging against your bumper while also protecting your bumper's finish. The built-in lanyard loops though the hole in your D-Ring Bolt preventing it from unscrewing itself. Made of durable polyurethane, Locking D-Ring Isolators are available in Black, Red, Royal Blue, Orange, Purple, White, Yellow, Fluorescent Orange, Fluorescent Green, and Fluorescent Pink.