It is useful for your health.

Features:
With 6 springs， it can give strong support to your waist.
Magnetic therapy effect can help relax muscles and reduce fatigue.
Double pressing designed to provide better support.
Lightweight， breathable material and seamless construction provides maximum comfort. 
Ideal for outdoor sports like climbing， hiking， basketball， tennis， etc. 

Specifications:
Material: 65% Neoprene !#!amp!*! 30% Polyester !#!amp!*! 5% Nylon
Color: Black
Item Size(L * W): 95 * 20cm / 37.4 * 7.9in
Item Weight: 360g / 12.70oz
Package Size: 29 * 22 * 2cm / 11.4 * 8.7 * 0.8in
Package Weight: 362g / 12.79oz

Package List:
1 * Waist Brace