The Polly Pocket Glitter Island Compact Mermaid Doll is a miniature 1-inch doll playset by the brand Polly Pocket. Released on May 3, 2025 by Mattel, this set includes a mermaid doll and various accessories, all packaged in a compact size. Perfect for collectors and fans of the Polly Pocket franchise, this item weighs 7.8 ounces and offers a fun and creative play experience for children.