Works best with NEWER HEAD STYLES: Shanice, Jackie, Athena, Cathy, Edies, Mini Head, Paisley, B.Lulu, Julia, and Ursa. May also be compatible with many of the older heads too! To be sure, ALWAYS “TRY BEFORE YOU BUY,” please, to ensure you get the right fit. Thanks for your diligence and happy shopping! ^_^