product information material: plastic Buckle specification: 3cm Quantity: 4 (2 black, 2 red) Note: The product size is measured manually, there may be errors, please understand Features Our barbell clips are made of high-quality ABS material, which has a long service life, strong and durable, not easy to break. Each collar clip is approximately 30mm (1.18") in diameter, just the right size for easy adjustment and good protection for the barbell. The barbell collar adopts a quick release and locking method, which can be easily opened and closed with one finger, and can be installed in a very short time. It is very comfortable and does not slip during use. Our quick release barbell lavaliers are ideal for workouts, overhead presses, weightlifting and other sports. Commonly used in the home, gym, and outdoor sports, they will help reduce damage to floors or bar counters.