Expert Features: Durable PBT Material: Ensures longevity and a premium feel. Double Injection Molding: Resistant to fading and wear over time. OEM Height & Stepped Layout: Ergonomic design for comfortable typing. Versatile Compatibility: Fits multiple keyboard sizes (61/64/68/78/84/87/96/98/100/104 keys). Multicolored Design: Stylish two-tone blue and black color scheme. Additional Keycaps: Comes with 104 standard keys plus 20 supplementary keys. Expert Specs: Type: Keyboard Keycaps Material: PBT + PC + ABS Number of Keys: 104 + 20 supplementary Color: Dark Blue, Black, Cyan Layout: Stepped OEM height (12mm) Keycap Profile: OEM Version: US Molding Type: PBT Double Injection Compatibility: Fits keyboards with Windows system layout Supported Keyboard Sizes: 61/64/68/78/84/87/96/98/100/104 keys