1. 4.4-44LBS CUSTOMIZE RESISTANCE: PUMP lets you pinpoint the suitable resistance from 4.4 - 44lbs, or more if you combine PUMPs. Find the most resistance (with zero elastics) for any exercise and adjust it with a few taps on the app. 2. CHOOSE YOUR BURN IN 6 MODES: PUMP provides you with 6 training modes: Standard Mode, Concentric Mode, Eccentric Mode, Constant Mode, Chain Mode, and Generation Mode. 3. 100+ FREE TUTORIALS: PUMP features over 100+ videos and courses showing you exactly how to get through every movement. 4. RECORD YOUR WORKOUT DATA: The app will record your exercise data to show how many reps you’ve done, your number of sets, calories burned, and more. Plus, the online platform lets PUMP users share photos, tips, and support. 5. BIG WORKOUTS IN A TINY PACKAGE: Light, compact, and ready to travel, PUMP is the workout system you can take on the go. Dimensions: 4.1''L × 4.1''W × 2.4''H, Weight: 1.54lbs (700g)