1. Adjustable layer system so that you can adjust the thickness to your desired height increase. 2. Self-adhesive and immovable, will not fall off easily. 3. Reduces knees and back pressure when walking. 4. Enhance blood circulation, reduce muscular aches and pains, shock-absorbing after using it. 5. Designed to fit shoes of all sizes, fit any kinds of shoes for women. 6. Can be washed with hand and dry in the air. 7. Washing method: warm water, gentle hand, natural dry, reusable, long-term use will not be flat deformation.
