Hand Training Spring Hand Grip Finger Strength Finger Trainer Power Expander

Overview:

High-strength steel wire springs are made of high-quality carbon steel.
Thickened grip foam, soft and comfortable, sweat-absorbent and non-slip.
Increase steel sheet insurance, safe and durable, not easy to pinch.

Product Information:
Product Category: Grip
Material: Spring steel
Specification: 4.5cm

Packing List:
Grip*1