Material: Collars are manufactured from high-strength cast iron with plating. Anti-rust, high strength and anti-corrosion. (Types 1: Nut type; Type 2: With Lock) Function: Designed for secures the position of dumbbell on the bar. To provide balance and stability safely and securely. Suitable: Only suitable for electroplating solid barbell rod with a diameter of 2.4cm/0.94 inch. Easy Install, quick lock and release, easy and convenient installing/removing. Application: Perfect for cross fitness training, Olympic lifts, overhead press, deadlifts, bench press, or any other workout using Barbell. Package includes: 2pcs * Barbell Collar (Silver; Note: Please See if The Threads are The Same.)
