Orgel(オルゴールOrugōru) is a Treasure Tool is specially used by the Aizen Siblings (Tiriel and Sorath) for the usage of Cradle Garden. It is used primarily to replicate the effects of casting complicated Unrestricted Spells multiple times or maintaining an Unrestricted Spell in effect. The only setback to this is that it is not allowed to be moved from the place where its effect is first used.