Fast Adjust from 2 to 5 Pounds: Each Dumbbell Can Adjust: 2 3 4 5 lbs, One Pair Can Adjust: 4 6 8 10 lbs 4 In 1 Weights Adjustable: Each hand weights dumbbells consists of 6 weight 0.5lbs dumbbell plate. We are the only 0.5 lb integer adjustable dumbbells on the market, and we have the value printed on each piece, others are not integer adjustable