The Bowflex SelectTech 552 combines a sleek look with a patent-pending locking mechanism that allows the user to securely change the weight on the handle. The mechanism only works while the handle is inserted into the base, eliminating the chance of accidents with dropped plates. Covered with a unique injection-molded plastic, the plates won't clank and clatter when they are set down. The cover also keeps weights from scratching floors or other surfaces they might touch. And no matter how sweaty the workout gets the covering protects the weights from corrosive rust.

Now anyone can fit a complete set of dumbbells into even the most crowded home without sacrificing the quality of the workout.

• Build fat-burning muscle fast. You'll have all the weights you need in one set of Bowflex SelectTech 552 Dumbbells.
• Adjust in 2.5 lb increments (up to the first 25 lbs) so you can gradually increase your strength without bulking up.
• One of the most space-efficient and flexible strength-training options available - say goodbye to 30 dumbbells cluttering your workout space.
• Built with cutting-edge technology that lets you rapidly switch from one exercise to the next - less time wasted, more time getting fit!