Digital Electric Hand Gripper Hand Dynamometer Counting Gripper Hand Grips Strengthener Measurement Meter Auto Capturing Power Good Way To Keep Fitness style:Dynamometer Roll the derma roller back

Roll the derma roller back and forth 4-5 times in each direction horizontrally

low in noise

shrink pores

Each brush is handmade

Digital Electric Hand Gripper Hand Dynamometer Counting Gripper Hand Grips Strengthener Measurement Meter Auto Capturing Power Good Way To Keep Fitness style:Dynamometer Roll the derma roller backOverview: 1: LED high definition large screen, intelligently displays the value, and automatically grab the maximum strength value 2: Test + exercise two in one, suitable for entertainment between classes + pre exam exercise + rehabilitation training, exercise in entertainment 3: Accurate measurement, easy to operate, adjustable grip distance, to meet the needs of different groups of people, up to 90kg grip strength can be tested 4: A good helper for