Hand-muscle developer, high density foam, comfortable to hold, skin-friendly and skid resistant. High strength spring, nice resilience, chrome plated surface, anti-rust, it can relieves fatigue and strengthens muscles.

Features:
Portable, easy to carry, not subject to fixed time and space restrictions.
A-shape appearance, fit hand curve.
High density foam, comfortable to hold, skin-friendly and skid resistant.
High strength spring, nice resilience, chrome plated surface, anti-rust.
It can relieves fatigue and strengthens muscles.

Specifications:
Appearance: A-Shape
Type: Green, Yellow, Red, Orange, Blue, Thumb Style (optional)
Material: Foam + Chrome Plated Spring
Package Weight: 95g / 0.32ounces
Package Size: 130 * 100 * 30mm / 5.12 * 3.94 * 1.18in

Packing List:
1 * Wrist Developer