Aminopenicillins Molecular Skeletal Chemical Formula Stock Vector Backless Long Sequin Prom Dress: Chandalier 30101. Sleek and sparkly, this long sequin prom dress 30101 by Chandalier is sure to make you shine like never before. With sparkly sequins from the square neckline to the hem, this long evening gown offers a dazzling look for prom, galas, and other black tie events. The long sequin formal dress has a strappy open back that adds a sexy vibe with every turn, while the long skirt opens in a side slit while showcasing the curves beautifully. The epitome of modern glamour for your exciting night, this strappy open back long sequin prom dress is sure to elevate your allure while shimmering with every move you make.