SelectTech 552 Dumbbells from Blowflex replaces 15 sets of weights.
With just the turn of a dial you can automatically change your resistance from 5 lbs (2.27 kg) all the way up to 52.5 lbs (23.8 kg) of weight.
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SelectTech 552 Dumbbells from Blowflex, dumbells, bowflex dumbells, bowflex