This is a posable, Master-Grade injection-plastic kit of an item from the Gundam universe.
Wow! Here's the Master Grade Gundam Mk.II coupled with parts for the G-Defender which lets you create an MG Super Gundam, and an impressive sight it is, standing almost 30cm! Almost all of the fins and hatches on the G-Defender move to allow various configurations, reveal missile bays, etc. A great buy at just 4,000 yen. Now only if they'll market the G-Defender parts separately...
