The Aquarius was the first major 4A (Offstring) yo-yo from YoYoJam, and (technically) their second offstring model after the earlier and limited OS1, released as a signature series yo-yo for Hironori Mii. It was discontinued in 2002 and replaced by the Free Agent in 2003. It was re-introduced in 2004 when the Free Agent failed in the market. After five years (during which it went through a redesign here and there), the Aquarius was finally discontinued for good in the Spring of 2009, due to manufacturing difficulties.