small suction cup design, non-slip in contact with , safe and non-slip use more assured. functional column design, can be massaged and cleaned, the column is moderately soft and ha, and the friction removes the dead skin on the soles of the feet. TPR material, soft and comfortable, not easy to deform when folded arbitrarily. Humanized hanging hole design, easy to hang and place, save space. Correspong to the 3D three-dimensional design of the sole of the foot, the long bristle can penetrate deep into the gap of the toes for cleaning, the short bristle is specially designed for the sole of the foot, and the sole of the foot is designed to fit the sole of the foot and massage the acupoints on the sole of the foot. Read Less