Make a splash at the party with this stunning Mermaid Unicorn Costume for Girls LED Princess Dresses. Perfect for Halloween or birthdays, this dress features a beautiful multi-color design that will catch everyone's eye. The dress is made from high-quality elastic and satin materials, ensuring a comfortable and durable fit. With LED features, this dress is perfect for any occasion. It's designed with a princess fit and comes in a variety of sizes to fit all your little princesses. Whether you're throwing a birthday party or a Halloween bash, this dress is sure to make your little ones feel like true princes and princesses.