YBB 4 Pairs Magnetic Massage Insole, Acupressure Foot Therapy Pain Relief Unisex Shoe Insoles Cutable Memory Cotton Shoe Pads

Specifications:
Material: cotton + EVA sponge + PU leather + magnetic
Size: One Size Fit Most US M(4.5-12.5) W(6-14)
Package quantity: 4 pairs magnetic massaging Insole(2 white+2 black)

Features:
1. Relieves natural pain
2. Improve blood circulation
3. Treating foot disease
4. Boost endurance
5. Cutable and Washable
6. Help to loose weight

Use advice:
1.Wear 2 hours everyday for 3 weeks to be accustomed to it.
2.After 3 weeks, wear everyday even you do physical activities.