Hammer Strength Standard meets decades of proven PowerBlock design and legacy with the PRO 100 Adjustable Dumbbells. Hammer Strength PRO 100 Commercial Dumbbells revolutionize efficiency and versatility, replacing numerous traditional dumbbells while saving on costs and storage. With color-coded side rails and an easy weight chart, the nested weight plates and convenient handle ensure simple and seamless weight adjustments. By situating these adjustable dumbbells conveniently alongside a rack station, athletes can stay focused within their training zone, while coaches enjoy the benefits of optimized programming. When space becomes a critical factor, only the most advanced solution will suffice. Merging 20 pairs of dumbbells into a single, compact dumbbell, the Pro100’s redefine the limits of space optimization. 20 pairs of dumbbells in 1 set (88% smaller footprint than traditional dumbbells) Simple and secure selector pin design Balanced, stainless steel knurled handles