Premium Bandai adds the Primrose expansion set to make variations of ADVANCE OF Z series model kits in the Master Grade lineup! This kit offers variety of gimmicks and detailing that has never seen before in any AOZ Primrose model kits. The kit serves as an expansion unit for any MG 1/100 scale AOZ kits, that includes its main variant host, the Gundam TR-1 Hazel to make some of its variations and equipment expansion.