Key Features . Compatible with Razer Keyboards.Made from PBT offering a textured surface with greater durability.A legend that never fades crafted using the Double Shot moulding method.Stay illuminated with these stylish backlit caps.Covered by a 1 year warrantySUPERIOR PBT MATERIAL Harder and more durable than ABS or PVC PBT is a high-grade thermoplastic that gives the keycaps a sturdy textured look and feel that won’t wear down to a shiny finish. Crafted with extra-thick walls they are well equipped to handle extreme use and produce more satisfying keystrokes because of their solid build. DOUBLESHOT MOLDING WITH ULTRA-THIN FONT Using our unique doubleshot precision molding process the keycap labels are fade-resistant and have the thinnest font ever produced on PBT keycaps.They are also designed to be backlight compatible and work best with our keyboards’ Razer Chroma RGB lighting. WORKS WITH POPULAR KEYBOARD LAYOUTS The Razer PBT Keycap Upgrade Set works with Razer and standard 104/105 key US or UK layouts and comes with 120 doubleshot PBT keycaps and additional stabilizers for optical and mechanical keyboards..