15 weight settings in 1 dumbbell set provides great functionality and saves space; can increase weight resistance in small increments, which helps prevent muscle strain and is better for building muscle strength and endurance; durable design; dial adjustment system does a good job of securing the plates to the handle, which eliminates clanking noises and pinching; comfortable grip, so weight lifting gloves are optional; great for P90x enthusiasts
Highly rated, space-saving and functional design with 17 weight settings in 1 dumbbell set (replaces the need for 34 individual dumbbells); great for speed circuits where you need to change weights quickly; wide range of weight settings means you can do more challenging and varied full body exercises