How to use: Simply put on the black halter - neck dress. Then, clip the blue hair clip into your hair to complete the Grease Cha Cha DiGregorio look. It's perfect for themed parties or dance events. Attention: This is an adult - only costume, so keep it away from children. The dyes in the dress might not be color - fast, so avoid rubbing it against light - colored surfaces. Maintenance: Always dry clean this costume. Don't try to wash it at home as it could damage the fabric and the colors. And of course, make sure to store it in a cool, dry place, and keep it far from any sources of fire.