This yellow Komodo spinlock collar is designed to secure 2" diameter Olympic barbells or dumbbell bars, providing a fast and reliable method for preventing weights from falling off during workouts. Its easy-to-use locking clamp design allows for quick fitting and removal without the need for twisting a pin, making it a convenient choice for those seeking efficiency in their workout routine. Crafted from solid nylon resin and equipped with rubber inserts, this collar is suitable for use with all 50mm/2" weight bars.