Wrist Trainer Ball Smart Display Curved Handle Enhanced Grip Wrist Strengthener Forearm Exerciser Ba

Feature: 1. Smart Display: The wrist ball allows for real time monitoring of exercise duration, speed, and precise strength. Has summary, time, and power modes for a diversified workout. 2. Versatile Use: The wrist bones strengthener ball is suitable for exercising arm strength, wrist power, chest and back muscles, both at home or at the office, catering various needs. 3. Unique Design: The wrist exercise ball operates on the principle of centrifugal force, the faster the speed, the higher the required opposing force, helping build strength progressively. 4. Accurate Sensing: Using Advanced speed sensing technology, the forearm trainer ball accurately records each exercise's duration and changes in strength, allowing for scientific planning of training intensity. 5. Ergonomic Design: The curved handle design of this muscle strengthener ball excellently fits wrist curve and can be securely held even under high intensity vibrations, ensuring safety and comfort during workouts. Specification: Item Type: Wrist Trainer Ball Material: ABS Battery Quantity: 2Pcs (Ship with Built in Battery) Single Battery Capacity: 65mAh Package List: 1 x Wrist Strengthener Ball 1 x Instruction Manual