My child used these for a piano recital. They are labeled as size 33, but I purchased them because they were described as approximately 19 cm. Size 33 is usually a Japanese size 21 cm, but these seem a bit small, and my child, who is actually 19 cm, wore them. They fasten with Velcro, so even young children can easily put them on and take them off. The white base with sparkling glitter is very cute and easy to match with any dress color. They are recommended for recitals, weddings, parties, and more! These are used items, so please check the photos and understand before purchasing. They will be shipped in a box. ⭐︎Instant purchase is welcome.