High Quality Materials: Made of microfiber materials,ensure breathable, comfort and cushioning High quality back glue: adopt three layers of mixed material double-sided glue, two layers of glue and one layer of stable fiber, super high viscosity and durability, no need to worry about damage shoes for a long time Solve Your Problems Easily: Instead of insoles and inserts,Improve Shoe Fit and Comfort, Forget your disposable woundplast, attach it to your shoes instead of your feet,the pads protect and support your heels from pain,blisters,and rubbing Who and What Shoes Dose It Apply to: It is suitable for men,women,boys and girls Suitable for almost all shoes, such as canvas,pump,high heel,flat shoes,dress shoes,work shoes,leather shoes,loafer shoes etc. Worry-free products and services: no reason to refund within 30 days.If you have any problem in use, please contact us through Amazon email. Our customer service staff will certainly give you a satisfactory solution.