Designed for use with all 50mm / 2" weight bars, the Komodo 2 Inch Spring Bar Collar in blue is a locking clamp collar that can easily be slid onto the Olympic bar or dumbbell bars. This ensures a secure fit and prevents weights from falling off during workouts. Its simple design allows for quick fitting and removal, and its solid nylon resin material with rubber inserts prevents the collar from sliding when locked in place. Save time and increase your workout efficiency with this professional-grade product.