Perfect for powering through a range of exercises like curls, rows, and kickbacks, these round dumbbells are ideal for dynamic movements like rollouts and renegade rows. With a rugged black urethane coating that outlasts traditional rubber dumbbells, they're odorless and tough enough to withstand heavy drops, keeping their shape and appearance intact for longer. The 5-50 LB sets come with 32mm hard chrome handles, while the 55-120 LB sets feature 33mm hard chrome handles. Both sets include medium volcano knurling for a rock-solid grip during every lift. Bold, easy-to-read weight indicators ensure quick identification, even during intense workouts. Benefits of CPU Dumbbells The advantages of CPU (cast polyurethane) dumbbells over TPU (thermoplastic polyurethane) are their superior density and durability. CPU dumbbells can handle heavy use without cracking or breaking, while TPU tends to wear down more quickly over time. CPU also offers more consistent weight and shape, whereas TPU may have slight variations. Additionally, CPU provides a better grip, thanks to its denser, more textured surface.