SUPERIOR QUALITY: Yes4All barbell clamps are kindly made with premium solid nylon compound, making it virtually indestructible. Together with sturdy clamp locks and high-pressure grip pads, securely into place, these barbell collars will keep your weight plates securely fastened to the barbell. SAFETY INSURANCE: Yes4All barbell clips were developed to withstand serious weight capacity. The clamp locks securely onto the bar, preventing them from slipping off during heavy lifts. You will feel much more confident and have more pleasant during training sessions. EQUIPMENT PROTECTION: Barbell lockjaw collars are padded with elastic rubber, helping to protect barbell and weight plates from damage. These weight clips fit only with 2 inch (50mm) sleeve diameter standard Olympic bar. EASE OF USE: These bar clamps are ideal gym accessories since you can quickly change your weight levels with one-hand lock mechanism, making training sessions will become much more pleasant. IMPROVED LIFTING PERFORMANCE: By providing a more stable and secure grip on the barbell, you can perform better form and technique to lift more weight and build more muscle in various exercises, workouts, Olympic lifts, overhead press, deadlifts, bench press, or any other Olympic bar workout.