These cushions work with the body's natural shock absorbtion system to reduce "foot fatigue

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It comes with battery

Knixmax Women's Sport Shoe Insoles, Comfort Thin Cushioning Orthotic Sneaker Inserts for Woman, candle making These cushions work with theKnixmax Women's Sport Shoe Insoles, Comfort Thin Cushioning Orthotic Sneaker Inserts for Woman, Honeycomb shoe insoles, extremely breathable and odor controlling. BREATHABLE DESIGN: Knixmax honeycomb shape sports shoe insole have good air permeability. The upper mesh leather can absorb sweat and remove moisture efficiently, making your feet fresh. LASTING COMFORT: Anatomical arch support improves foot and leg alignment, enhances comfort, and helps