The Hi-Zack was a sort of "new and improved" version of the Zaku II, making its first appearance in Z Gundam. The lighter alloy used for its construction allowed for the installation of larger fuel tanks and more powerful thrusters, improving maneuverability in combat; this, plus easy maintenance, made the machine was popular among its pilots. Bandai has reproduced this fantastic machine (designed by Kunio Ohkawara) in a Master Grade kit with their usual attention to detail and stupendous quality!