HyperX Double Shot PBT Keycap Review ON the Razer Blackwidow Elite! - YouTube
Razer Enters the Customizable Keyboard Market with Its Own Line of Custom Keycaps - IGN
Amazon.com: Razer Doubleshot PBT Keycap Upgrade Set for Mechanical & Optical Keyboards: Compatible with Standard 104/105 US and UK layouts - Quartz Pink : Video Games
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
If You Want to Customise Your Mechanical Keyboard, Razer's New Kits Are a Solid Way to Start