SCOPE OF DELIVERY - 2 pairs * Sports spring locks. Length 165 mm, aperture 48-49 mm, suitable for rods with a diameter of 50 mm. Please check the size and type of your barbell carefully before buying.SAFER - The spring-loaded snap lock provides a great grip to keep the plates securely in place for a safer workout. Add the clips to dumbbells or free weights and safely perform snapshots, squats, deadlifts, and various presses.QUALITY MATERIAL - The spring clip collars are made of quality steel to ensure durability and reliability. They are rustproof and sturdy, not easy to break or deform, and can serve you for a long time.EASY TO OPERATE - The spring collars can move your weight plates easily and quickly, can hold the dumbbells safely and securely while lifting, you just have to quickly loosen and fasten them so that you can slide up and down easily when changing weights.APPLICATION - Spring clip for weightlifting, powerlifting, gym, fitness, weight training, strength training, triceps trainer, etc. It is very suitable for men and women who prefer regular fitness and training.