•Arch trainer adopts high quality TPR, soft and skin friendly, environmentally friendly and harmless.
•Trainer soft and hard moderate, massage more comfortable.
•The product is small and light, and can be carried everywhere.
•The hollow design of the bottom plate of the trainer increases the friction to avoid accidental slipping.
•30° meniscus shape design, can be stretched skipping rope, improve high and low feet.
•Functions: Improve arch, improve leg shape, foot massage, stretching, improve thumb valgus and so on.