10-100Kg Adjustable Gripper Fitness Hand Exerciser Finger Strengthener Color:Black when using a long time

when using a long time

easy to use and easy to operate

With this elaborate design

Case Material: ABS

set reminders

10-100Kg Adjustable Gripper Fitness Hand Exerciser Finger Strengthener Color:Black when using a long timeFeature: Intelligent adjustable grip: Adjustable force. Mechanical counting. Comfortable handle. High strength spring. 10 100KG strength can be freely adjusted. Strong and durable: High strength bold spring is strong and durable. Electronic liquid crystal display: Electronic liquid crystal display, can be cleaned and reused. Strengthening hand strength: Strengthening hand strength to awaken physical vitality often helps to relieve sore muscles and