Features: 1. It can help the barbell board to lock quickly and not easy to slide. Reduce damage to the board or rod. 2. Enhanced plastic chuck, creative fast opening and closing design. Easy to slide up and down and effectively guarantee the weight. 3. High-end fixtures can better lock the OB strip, suitable for standard Austrian strips of 1 inch and 2 inches. 4. Ideal for bodybuilding, fitness, gym and training. Specification: Material: nylon rubber Inner diameter: 25 mm / 1", 50 mm / 5 cm / 2" Type: Standard collar, barbell lock Type of activity/exercise: bodybuilding, fitness, fitness & training, weightlifting Color: Black/Red/Yellow/Blue/Green Scope of application: about 1 inch / 2 inch barbell Package includes: 1 pair of barbell clip collars Notice: 1. All pictures are professional color-coded, but due to different ambient light and different display device settings, there may be some deviations from the pictures you see and the project itself. Please understand that. 2. The data is measured manually, there may be some deviation, but it will not affect the use of the product.