Discover your strength with weights that adjust from 5 to 52.5 lbs per dumbbell. The SelectTech® space-saving design gives you more workout in less space by replacing 15 weights with just 1. Compatible with the JRNY® app with Motion Tracking: Count your reps and get real-time feedback on your form from your phone or tablet. Or work in some yoga, Pilates, or bodyweight workouts for a change of pace. JRNY gives you a million exciting reasons to pick up your dumbbells. New members can try the JRNY Mobile-Only Membership free for 2 months. 2-month free trail:Try a JRNY® All-Access Membership for 2 months, freeThe JRNY® Mobile-only Membership:Workout at home or on the go with inspiring trainers, and just-for-you adaptive workouts, from your phone or tabletThe JRNY® app with motion tracking:Lose count, it's OK. Motion Tracking keeps track of your reps for you and gives you real-time feedback on your formClasses Made For Selectech®:Find trainer-led workouts developed exclusively for the SelectTech Kettlebell with the JRNY appSpace Saving Design:Replace 15 sets of weights with 15 to 52.5 lbs Per Adjustable Dumbbell:Selection dials easily take you from one exercise to the nextStaorage Trays:Keep your weights organized and off the floorOffer limited to new JRNY® members and subject to change without notice. At end of free trial, JRNY membership automatically renews at membership rates until canceled.**JRNY® subscription required.