High Grade (HG) is a line of Gunpla kits by Bandai. These kits feature a better range of motion and greater poseibility than most No-Grade kits. High Grade kits make up the largest range of Gundam universe model kits. The range also features other licenses such as Mazinger and Pacific Rim to name a couple.
The very first HG line was released in 1990 to celebrate the 10th anniversary of Gunpla, consisting of all-new molds of the first four main Gundams with improved detail and articulation from the Universal Century timeline.