Hand Strength Grip Trainer

Description:

Material: Shell ABS, grip NBR (foam), imported piano spring steel core.
Product specifications

Strength power:

10kg, 15kg, 20kg (we press the weight of your choice of the photo show)
Handle color sent by random

Small size：about 39*20*2.5cm  700g

Big size：about 41*22*2.5cm  800g