Despite a few variants of Dolch already out in the wild, GMK Dolch R5 brings the row 5 profile, and the classic icon text modifiers to the masses.To facilitate a smooth GB, LightningXI has trimmed down the essential kits to two: Base & Extensions. The third kit you'll see are feature alternate Hangul sub-legends.The question is does the R5 refer to the added profile row, or the fact that this is the 5th round? Base - covers most layouts, including ISO-UKExtension - extends coverage for other layouts, novelties, and includes extra keys so that you can have two modifier sets to dress up two keyboards (e.g. TKL/1800 + 60/65%)Hangul - further extend Dolch usage, now with Korean language sublegends! If you purchase ALL 3 kits, you can equip two keyboards fully with Dolch. Manufacturer: GMK Profile: Cherry Sculpt: 1/1/2/3/4/5 Plastic: ABS Colors: Alphas: CC & CP Modifiers: N9 & CP Accents: P3 & CP; custom Dolch turquoise & CP.