Heavy-duty steel spring with adjustable stabilizer, and adjustable wrist pad to control tension help build powerful wrists and forearms for enhanced performance in any sport. Foam padded for extra comfort and protection. Perfect size for travel!

Features:

Material : spring steel & plastic
Suitable for body building
Small volume,easy to carry
Enhance joint flexibility,and To accelerate blood circulation.
Size: 13cm wide, 27cm long
Spring Thickness: 1.3 cm
Weight: 415g
Material: stainless steel spring + black sponge set
Color: Black
Firm grip contour design
Compact and portable