To use these sandals, simply unzip the back zipper and slip your foot in. They are true to size, so you don't have to worry about sizing issues. When walking, the high heel and platform design will give you a taller and more confident stance. As for maintenance, use a soft cloth to gently wipe the pink vinyl surface to keep it clean. Avoid getting them wet for a long time, as this may damage the material. Also, store them in a cool and dry place when not in use to prevent any deformation.