NIYIKOW 2 Pack Grip Strength Trainer with Counter, Hand Grip Strengthener, Adjustable Resistance 11-132Lbs (5-60kg), Non-Slip Gripper, Perfect for Athletes and Hand Rehabilitation Exercising 2Pack-Black workwarehouse Product Type Outer Hex Thread

Product Type Outer Hex Thread Socket Pipe Plug Fitting(1/4"Male NPT) with protective case

the LED light will light up

Other brands may not work if the wiring is not the same

Incorporate measurement

Height: 23cm/ 9

NIYIKOW 2 Pack Grip Strength Trainer with Counter, Hand Grip Strengthener, Adjustable Resistance 11-132Lbs (5-60kg), Non-Slip Gripper, Perfect for Athletes and Hand Rehabilitation Exercising 2Pack-Black workwarehouse Product Type Outer Hex ThreadNIYIKOW 2 Pack Grip Strength Trainer with Counter, Hand Grip Strengthener, Adjustable Resistance 11 132Lbs (5 60kg), Non Slip Gripper, Perfect for Athletes and Hand Rehabilitation Exercising Product Features ADJUSTABLE HAND GRIP STRENGTHENER with COUNTER Mechanical counting from 0 to 99, and start a new round. Do not have to count yourself. The integrated counter automatically tracks your repetitions as you squeeze. Never lose count of reps again!