Made from durable chrome vanadium steel

Packing List:

Balanced bicycle * 1

Specifications: HD-PTT-U94-KW-BK

4D PU Massage Insole Set with Back Posture Corrector & Lumbar Stretch Support Brace Size:39-40 Made from durable chrome vanadiumProduct information: Color: black, gray, whiteSize: 3536, 3738, 3940, 4142, 4344, 4546Applicable gender: unisex (suitable for both men and women)Style: full length insoleMaterial: PUSuitable seasons: summer, winter, spring, autumn. Packing list: 1 pair of insoles (variable sizes) + 1 back correction strap (fixed size) + 1 massage corrector (fixed size) Note: Size selection is based on the insole size only. The included massage corrector and back