High-quality materials: The dumbbell clamps are made of high-quality materials, which are sturdy and durable. Note: Please buy the right size according to the inner and outer diameters of the picture, otherwise it is easy to fall off. Excellent durability: The durable cast iron body and high-pressure internal grip pad make our barbell clamps almost indestructible. Suitable for all standard dumbbell sets: The dumbbell clamps are designed to fit most handle plates, cast iron plates, and rubber handle plates, which are widely used in barbell sets. Suitable for most hand grip plates, cast iron plates, and rubber hand grip plates, suitable for classic and professional gym owners. Easy to use: The dumbbell clamps are easy to use, with a two-way locking design, one button for easy operation installation and removal, and an easy-to-carry design. The snap-on design provides you with protection. Lightweight, easy to carry for transportation and neat to transport. Grain accessories: They are perfect for everyone. Volume training, bodybuilding, weightlifting and fitness training Any exercise using standard dumbbells.