With just the turn of a dial you can automatically change your resistance from 5 lbs. all the way up to 52.5 lbs of weight. No more picking up 30 different dumbbells to get the results you want, this adjustable dumbbell replaces 15 sets of weights! All you need is a SelectTech 552 Dumbbell to transform your body for good. Our JRNY Mobile-Only Membership with Motion Tracking is ideal for strength training at home or on the go; try it free for 2 months from your phone or tablet.