The size is likely M, and it's a perfect fit for those who wear 23 to 23.5 cm. These are UNIQLO enamel pumps. They haven't been used much, but there may be some scuffs, etc. m(__)m These simple heels are perfect for entrance ceremonies, graduation ceremonies, and suit styles! For those who understand that these have been stored at home, please consider purchasing. Heel Shape: Pin Heel Toe: Pointed Toe Color: Black No Straps Pattern/Design: Solid Heel Height: Approximately 3.1-5cm Color: Black