Thank you for viewing. These are Japanese-made health sandals with massage nubs. The insole is black, which doesn't show dirt easily, and the sole is white, so it won't leave marks on the floor. They can also be used outdoors. Size Guide: S: 22cm - 23cm M: 23cm - 24cm L: 24cm - 24.5cm ▲ Glue may be visible where the body and sole are joined. Please refrain from purchasing if this is a concern. ☆ The color in the images may differ from the actual product. In such cases, the color seen will be noted in the title. Please use this as a reference. ◇ Returns and exchanges are not accepted. We will answer any questions until you are satisfied. ♡ We will ship via Yu-Packet Post. They may be slightly compressed when placed in the post box. Please understand. We look forward to your purchase. Health nubs Health sandals Women's For ladies Indoor slippers