Amazon.com: Razer Doubleshot PBT Keycap Upgrade Set for Mechanical & Optical Keyboards: Compatible with Standard 104/105 US and UK layouts - Razer Green : Video Games
modification] Where can I buy razer blackwidow custom key caps? : r/MechanicalKeyboards
Razer PBT Keycap Upgrade Set - Gaming Keyboards Accessories
Customizing Razer keyboards with keycaps, coiled cables, and wrist rests