These are zori-style sandals. There is no size listed, and the total length of the zori is about 18cm. I bought them when my child was wearing 16cm sneakers (New Balance 996). When wearing 16.5cm sneakers, they can be worn, but they are too tight and the child said they were uncomfortable. Therefore, I think they are a good size for children who wear 15.5cm to 16cm sneakers. *However, this may vary depending on the shape of the foot... I planned to wear them with a jinbei (traditional Japanese summer outfit) at a festival, but the festival was canceled, and I never had a chance to wear them. I only tried them on indoors. The heel height is about 3cm. The sole is made of sturdy rubber. * Significant price reductions for single items are not offered. * This is a personal inspection. ☆ Please check my profile before purchasing ⑅◡̈*