The Kelly and Tommy Alice the Mad Hatter Disney Barbie Collector Edition 57577 is a 4-piece collector toy set featuring characters from Alice in Wonderland. The Barbie dolls, standing at 4 inches tall, come with accessories such as a tea set, hat, and doll, all made of plastic. These Barbie collectibles are part of the Disney Barbie Dolls product line and are licensed by Mattel. The set includes characters like Alice, Mad Hatter, Tommy, and Kelly, making it a great addition for adult collectors who enjoy fantasy-themed dolls from the 2000-2009 time period.