Pullip Doll is a 1:6 scale doll which was created by Cheonsang Cheonha and marketed by JUN Planning of Japan in 2003. It's a collectible fashion doll. There are other types of dolls in Pullip line such as Taeyang, Dal and Little Pullip. Each edition has a unique name with distinct face make-up, hair, outfit, accessories, and box.

The Pullip has a unique eye mechanism that allows the eyes to move back and forth and wink, using levers on the back of the head. Pullips are highly articulated and can be personalized or customized the same as Blythe. In January 2008 Pullip Doll can do sleep eyes by itself. Before that you have to hold pushing the button to make its eyes sleep not wink.

This is Pullip
This is Our First Pullip. Code name "Nelly".

Body
"Starting in January 2004 with the release of Venus, Pullip had a new body (called the "Type 2" body), which had no visible screws, a soft torso, and joints that could be pulled apart. This body had more realistic proportions, and to date is the most poseable body. Disadvantages of this body include the limbs can fall off or pull apart too easily, the soft torso 'pops' out of the hip joint, and that the plastic of the body had a tendency to melt under certain environmental conditions, mostly high heat and humidity.
With the release of Lan Ake and Lan Ai in 2005, a newer body was created with less articulation, a smaller more child-like body, and hinged wrists/ankles. This is referred to as the "Type 3" body. While sturdier than its predecessors, this body is the least poseable."
Pullip - Wikipedia

Release
"In 2006, Jun Planning began releasing licensed Pullips of the characters from the anime/manga Rozen Maiden series. These were not limited sales with the exception of the final Rozen Maiden Pullip, Kirakishou (which was an exclusive to TBS/Japan[1]). Several other collaboration Pullip dolls have or will be released including H. Naoto, Hello Kitty and My Melody from Sanrio, and Rei Ayanami and Asuka Langley Soryu from Neon Genesis Evangelion in 2007 and early 2008. Holly is based on Holly Golightly (Audrey Hepburn) from the film Breakfast at Tiffany's. The Rozen Maiden, Hello Kitty, Evangelion, and H. Naoto editions are not exclusive or limited sales dolls but have higher prices than standard dolls due to licensing."
Pullip - Wikipedia

Some said that Taeyang and Pullip are lovers and Dal is Taeyang's sister. Dal considers Pullip as her rival in fashion and style. So Dal's face is quite moody at a time.
Jun Planning announced in the beginning of 2008 that a new Dal will be released every month and Taeyang is released on a bi-monthly basis.

Nelly Prunella		Hikki Ayanami Rei Evangelion		Kiwi Hangry
Shinku Kunkun ver. Rozen Maiden