To use these sandals, simply wrap the strap around your ankle and tie it in a knot. They fit true to size, so you can choose your regular shoe size. When wearing them, be careful on slippery surfaces as the stiletto heel may make you a bit unstable. To maintain these sandals, wipe them with a soft cloth regularly to keep the patent leather looking shiny. Avoid getting them wet for long periods as it may damage the leather. Store them in a cool, dry place when not in use.