This article refers to a line of toys. For the flat, slitted transparent bags used to hold documents, see Punched pocket. Polly Pocket is a toy line of dolls and accessories. The name comes from the fact that many of the original Polly Pocket dolls came in pocket-size cases. The current Fashion Polly dolls sold by Mattel differ significantly from those originally sold by Bluebird Toys. The original Bluebird dolls were less than one inch tall and made of hard plastic. Mattel's versions are two to three inches tall and are composed of a pliable plastic with soft rubberized clothing and fashion accessories.