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Designed for use with both the Bowflex SelectTech 1090 and 552 dumbbells, this is a must have for your new Bowflex SelectTech Dumbbells. You never have to bend down to pick up your weights again. They're right there - ready to go. No strain. All muscle gain.

Bowflex Adjustable Dumbbells (Not Included) - The Bowflex SelectTech 552 Dumbbells bring you powerful results with the turn of a dial. This strength training system replaces 15 sets of weights and allows you to adjust them between 5 to 52.5lbs as you gradually increase your strength. Features easy to use selection dials for weight adjustment with a patent pending locking mechanism that locks only the weight you select.

Best-seller with rave reviews.