Comfortable neoprene glove custom conforms to the hand for a snug, no slip fit. Ideal for all aerobic activities to add superior benefits to your workout. A hook-and-loop attachment makes for a one-size-fits-most wear. Add speed, power, endurance and maximum cardio benefits while shadow boxing, running, aerobics, etc. Helps build powerful arms, forearms and shoulders. Unique design allows hands free to perform most activities while wearing. Now in 3 weights for every level athlete. Size: One Size Fits MostWeights (per hand): 0.5, 1, 1.5 lbs.