To use this costume, first put on the tutu dress. Slip it over your head and adjust the elasticized waist for a comfortable fit. The sewn - in belt at the waist can be tightened or loosened as you like. Then put on the shoulder straps with the tulle. Next, wear the black felt eyemask. Stretch the elastic around your head and make sure the eye holes are lined up with your eyes. When you're done using the costume, gently remove it to avoid any damage. For maintenance, spot - clean the dress with a mild detergent if it gets dirty. Don't machine - wash it as it may damage the digital print and the tulle. Keep the eyemask in a dry place to prevent the felt from getting wet and losing its shape. Remember, this is an officially licensed product, so take good care of it to enjoy it for a long time.