Complex sentence: Super Dollfie, or SD, the first model, were instroduced in 1999, and went through a remodel in 2003, the current girl model is 550mm, while the boy model is 565mm.
Split into simpler sentences: Super Dollfie, or SD, the first model, was introduced in 1999, and went through a remodel in 2003. The current girl model is 550mm tall, while the boy model is 565mm.