[5D Ergonomic Design & High Elastic Cotton] The heel grip is designed with raised top and concave bottom for 5D ergonomic design. Take good care of your feet. Besides, it features double care of non-slip silicone and high-elastic sponge foam to keep you soft and comfortable. Make your daily walks easy and stress-free. [4 Choices] There are 4 types of heel guards to choose from. Please check and choose the one you prefer. All of this is suitable for the insole of the shoe which is too big for your daily needs. [Easy to use] the heel protector has a self-adhesive backing that does not come off easily, does not leave no glue, just peel off the back shell and stick it inside the shoe to hold it firmly in place for a better fit, improving the slightly larger size. [comfort and wear resistance] heel sole filled with soft sponge, very comfortable, automatically adjust the space, keep the heel in the position of the shoe, relieve heel pressure, and help reduce friction between the shoe and foot. Avoid foot pain, blisters and swelling, which can help prevent skin scrapes and cuts. [Widely Used] Heel Insole is suitable for all kinds of high heels, casual shoes, sports shoes, etc. (Tip: not suitable for shoes with a lot of suede padding) [size]10*7.5cm [package contains] 4 pairs heel insoles