Features: 1) Rapidly switch from one exercise to next exercise 2) Using unique dial system to combines 15 sets of weights into one 3) Solve your need for multiple weight dumbbells Product Description: 52.5lb/24kg weight adjustable dumbbell 1)Weight Range: 5 to 52.5 lbs (2.27 to 23.8 kg)2)Exercises Available: 30+ 2)Weight Settings in pounds: 5, 7.5, 10, 12.5, 15, 17.5, 20, 22.5, 25, 30, 35, 40, 45, 50, and 52.5 pounds 3)Dumbbell Dimensions: 15.75â??* 8â??*9â?? 4)Weight : 52.5 pounds / 23.8 kg 5) Packing: 1pc per carton, carton size:56x35x30cm Neight Weight:24KG Gross Weight.:27KG 90lb/40kg adjustable dumbbell 1) Weight Range: 10 to 90 lbs (5.52 to 40.8 kg) 2)Weight Settings in pounds: 10,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85,90 and 70 pounds 3)Weight : 90 pounds / 40.8 kg 4) Packing: 1pc per carton, carton size:66x44x44cm Neight Weight:40KG Gross Weight.:44KG