【High-quality Aluminum Alloy Material】These barbell clamp are made from durable and lightweight high-quality aluminum alloy.High strength, strong and durable, firmly locked in place, can be used for a long time. 【Quick install】50mm quick release barbell locks clips,easy-to-use one-click lock design, can be installed in seconds with a single finger for easy and fast install/removal. The powered snap-latch jaw is designed to lock on any barbell for maximum grip and safety. 【Multi Purpose Portable Workout】Barbell clamps are built to accommodate a variety of training types,Perfect for cross fitness training, Olympic lifts, overhead press, deadlifts, bench press.The weight bar clamp are lightweight and space efficient that you can easily stash them in your suitcase or hand luggage, Suitable for training at travel, home, gym, park, etc.【Product Function】barbell collar Can fit for Olympic bar of 50mm, quick install/release between plate changes. Our weight collars have a rubberized lining to grip and protect the bar, no matter how long you use them. 【Multiple color options 】 Black, Silver,Red, Gold, Blue 【Package includes】2 x Safe Lock Collars Clip