STRUCTURAL UPGRADE: This uniquely designed dumbbell hooks features a new ergonomic nylon grip and stable crossbar support, providing unparalleled comfort and control during chest and shoulder compressions without the need to kick the dumbbell into place, saving energy and preventing potential shoulder injuries STABLE AND DURABLE: The sturdy and stable dumbbell Spotter hooks is made of heavy-duty iron with a max load capacity of 250 lbs / 110 kg. The top and entire body are made of special anti-slip technology process, which Resistant to rust and fade WIDE COMPATIBILITY: Dumbbell Spotter Hooks Hangers are compatible with about 99% of all dumbbells in the market, to avoid deformation and breakage due to uneven force, be sure to measure the handle length and diameter of the dumbbell you are using before purchasing. The handle length should be 4.5 inches (114mm) or more and the handle diameter should be 1.4 inches (36mm) or less EFFICIENT EXERCISE: Start using this uniquely designed bench press dumbbell hooks in a stable posture to prevent imbalance and asymmetry, ensure 100% energy is used to lift and promote balanced development of arm, chest and shoulder strength. Note: Start with light dumbbells to get the hang of it FIRST CHOICE:This dumbbell spotter hooks attachment is suitable for intermediate lifters looking for proper form and safety, advanced lifters looking for cautious progression, fitness enthusiasts pushing their limits safely, and fitness enthusiasts dedicated to strength training. Note:Highly recommend for serious lifters, Manufacturer: EWEGERT