Bowflex SelectTech 1090 Dumbbells Features

• Replaces up to 34 Dumbbells - With just the turn of a dial, change your resistance from 10 lbs (4.5 kg) all the way up to 90 lbs (40.8 kg) of weight.
• Adjusts to Your Workout - Adjust in 5 lb (2.3 kg) increments so you can gradually increase your strength.
• Space Efficient - Say goodbye to 17 sets of dumbbells cluttering your workout space.
• Wider Weight Range - With weight that adjusts up to 90 lbs, you'll continue to see results as your fitness level improves.
• Quieter Workouts - Durable molding around metal plates provides for a smooth lift-off and quieter workouts...no clanging metal plates!
• Total Body Results - With the wider weight range you can do heavy exercises such as shrugs and lunges as well as lighter exercises such as curls and raises.