The Sharkoon SKILLER SAC20 S4 is a set of backlit keycaps developed in collaboration with keycap specialist Tai-Hao specifically for the SKILLER SGK50 S4. The keycaps are made from high-quality PBT plastic using a double-injection process, which ensures particularly elegant and wear-resistant labeling. They are also more resistant to the gloss effect that traditional ABS keycaps develop over time and remain colorfast at all times. The SKILLER SAC20 S4 includes 61 keycaps for the ISO layout, and as an additional bonus, the set also includes two Sharkoon keycaps and one Tai-Hao keycap. A keycap puller is also included in the package.