ealth Care Wooden Base Acupunture Nail Health Shoes Massage Shoe Natural Stone Acupoint Fitness Slippers Upper: LeatherSole: EVA foam material, sole massage layer of natural wood.size38 yards sole length 24.5CM size40 yards sole length 25.5CM size42 yards sole length 26.5CM size44 yards sole length 27.5CMRecommended to wear big one SIZE. Please choose the size which you need.1. hand made with natural wood, hard wear-resistant nontoxic;2. black EVA foam sole, anti-slip damping effect;3.high density wood column foot reflex zone massage, stimulate foot acupuncture points, enhance the body energy;4.promote metabolism, increase blood circulation, ease neuralgia, eliminate muscle fatigue;5.qi and blood, adjust internal organs function, strengthen the immune system;6. Wear about 20 minutes a day be better.Features: promote human blood circulation, conditioning organs, balance yin and yang, Shu meridians, physical fitness, delay aging, illnesses and sickness.Because of handwork, the massage point is different in different lot.