American Girl Julie's Disco Accessories for 18" Dolls Your girl can imagine that her Julie doll is attending a disco-themed school dance, just like in the 1970s! This set includes a doll-sized ticket and poster for the dance, plus a mirrored disco ball that really lights up and spins at the touch of a button to make the dance floor sparkle. Requires 3 AAA batteries, not included. For 18 Inch Dolls