Put an entire set of weights at your fingertips without investing in several different pairs of dumbbells with the Weider Speed Pac hand weights. The Speed Pac weights work like a weight stack at the gym. When you want to change weights, simply move the selector pin to the desired weight range--the storage tray includes a color-coded weight guide--and you're set. Each Speed Pac weight varies from 2 to 12.5 pounds (in 2.5-pound increments) and includes a cushioned hand grip.