GMK is a particularly well known manufacturer of extra thick and extremely durable doubleshot ABS keycaps. The company was specially selected to create this keycap set, as their work features sharp legends and excellent color choices that will last for decades. The base set is designed for stock ANSI 60% keyboards, and is compatible with popular versions like the Poker II, Pok3r, the KC60, the V60, B.Face x2, KC60, GH60, Satan, Anne Pro, GONs, the Infinity Keyboard’s Alphabet layout and others. The Hacker / Standard child deal provides compatibility for those two Infinity Keyboard Layouts, and the Extras Kit provides additional flair options that let you create the color scheme seen in many of the renders of 3run.