Dumbbell Specifications: Weight Range: 5-52.5 lbs, Weight Variations: 15 Possible Weights: 5, 7.5, 10, 12.5, 15, 17.5, 20, 22.5, 25, 30, 35, 40, 45, 50, and 52.5 lbs. Dimensions: 15.75 inches long by 8 inches wide by 9 inches tall. If you are unsatisfied with your product in any way, we offer a 30 day money back guarantee!