Powerful results at the turn of a dial.\n\nWith just the turn of a dial you can automatically change your resistance from 2 kg (5 lbs) all the way up to 24 kg (52.5 lbs) of weight. No more picking up 30 different dumbbells to give you the results you want! All you need are two Bowflex® SelectTech® 552i Dumbbells to transform your body for good.\n\n- Replaces up to 30 Dumbbells - with a turn of a dial you can automatically change your resistance from 2 kg all the way up to 24 kg of weight\n- Adjusts to Your Workout - adjust in small increments so you can gradually increase your strength\n- Space Efficient - One of the most space-efficient and flexible strength-training options available - say goodbye to 15 sets of dumbbells cluttering your workout space\n- Wider Weight Range - with weight that adjusts up to 24 kg, you'll continue to see results as your fitness level improves\n- Quieter Workouts - durable molding around metal plates provides for a smooth lift-off and quieter workouts...no clanging metal plates!\n- 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\n- Special Bonus FREE Bowflex™ SelectTech™ workout DVD - "Secrets of the 4 Step Rep" - with every purchase. Get the most out of your workout - work smarter, not harder. Over 30 exercises with over 80 variations