Yokua Grip Strength Device Hand Strengthener Finger Exercise Grip Training Tool

Features:
Make from aluminum Alloys and spring steel for durability and resilience.
High density metal spring, with good toughness, deformation, and fractures resistance.
Grip handle adopts a patterned knurled design, which nonslip and have stable grip strength.
Mainly used for finger exercise, with various grip exercises to alleviate and improve finger muscle joint strain caused by long terms use of mobile phones and mice in daily work and life.
Easy to carry, making it great for strengthening exercises.

Specifications:
Materials: Aluminum Alloys and Spring Steel
Style: Male/Female/Black/Silver
Male/Female Grip Length: about 4.5cm/1.77inch
Black/Silver Color Grip Length: about 5.5cm/2.17inch

Note:
Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.

Package includes:
1Pc Grip Strength Device