Doubleshot RGB keycaps made from premium PBT polymer that won't wear to a shine over time. Perfect for late-night gaming and productivity sesions with translucent legends for peak RGB shinethrough.. Premium Design: Durable PBT polymer ensures keys never wear to a shine or lose their vibrant colors. Universal Compatibility: Fits all Glorious GMMK keyboards and mechanical keyboards with standard bottom rows. Physically supports both ANSI & ISO layouts. For Windows & macOS: This set contains keycaps specific to each operating system for you to choose from.