... soft silicone with always good-looking shape,is no harm to shoes,bareness or thin silk socks are both ok ... natural air,the pad can be used as sticky as a new one.elegant and compact,can'e be seen ... your lookhigh elastomer,the lastest new design for your feet how to use tear the PE off,directly tape the pad into ... the fore part of shoes,so easy to fix. Hardness 42±3 packing(1)1 pair/polybag, ...