The item is a professional and practical spring clip collar, which is made of alloy, which can be used for a long time. It is sturdy and easy to use, prevent your disc on dumbbell or barbell from slipping. This is a practical dumbbell clip that can provide you with an excellent fitness experience. Features - Color: Silver.- Material: Alloy.- Size: About 10.00X6.50X2.50cm/3.93X2.55X0.98inch.- This fitness barbell clip is made of high-quality alloy material, with high strength, durability, and is not easy to damage.- This fitness barbell clip makes the counterweight plate fast fixed, convenient to operate, simple to use, and more efficient to exercise.- This fitness barbell clip has fine workmanship, firm fixation and is not easy to break.- This fitness barbell clip is good at barbells, weights, etc. Training will be more enjoyable.- The installation method is very simple, don’t worry about taking up too much time.Packing list: 1 x spring collar