Get 200 yen off when you purchase two sets, so please comment your size. The displayed sizes are the outer dimensions of shoes and boots. Please check the size before purchasing. S size is 21-23cm. M size is 23-26cm. L size is 26-29cm. XL size is 29-32cm. The portable size is for those with a size of 23cm or more. It may vary depending on the shape of the footwear. Do not be overconfident even when wearing them. The material is TPE plastic. The pins use an alloy. To reduce shipping costs, we are sending them without the blister pack.