??????????? ?????????Our heel lift pads come with up to 12 months' warranty; during this period, if you are not satisfied with this purchase, please feel free to contact us and tell us how you would like us to help. We will try our best to provide the most responsible solution, thank you very much for your valuable time. ????????????????????????? ?????????????????? ?????????????Our height increase insoles material is medical grade silicone, the pad periphery with medium hardness silicone to play a long-term support role, and the heel with excellent cushioning structure, the impact of the core area has a round cushioning silicone shock absorption, coupled with the honeycomb structure of the secondary shock absorption design, to reduce the overall weight of the product at the same time, but also still has an excellent energy absorption and cushioning ability, to give the foot the most extreme comfort enjoyment!. ??????????? ???????? ???????????? & ????????-?????????The heel lift inserts are great for Heel Spurs, Heel Pain, Sports Injuries, Achilles tendonitis and other clinical conditions. The surface of our booster cushion has a non-slip finish, which keeps it from moving back and forth. ??????: If it still slides inside your shoe, try peeling back the original inner lining of the shoe(just at the heel) and slide the heel cushion underneath the lining of the shoe for a much better result. ????????????????? ?????? ???????????? ???????????????????????????For leg length discrepancy, whether congenital or due to surgery, our heel lift insert can help by reducing or correcting leg length discrepancy, balancing your posture, reducing joint wear and tear, and reducing lower body pain, so you can get back to living a healthy life. ??????????? ???????? ???????????????Our height increase insoles have a total of two height increase specifications: one has a height of 0.6 inches, and the other has a height of 1 inch. You can choose the height that suits your needs for the optimum heel lift customization. Our shoe pads are suitable for sports, casual, and formal shoes.