Features: Waterproof and dirt-resistant material：Using artificial leather (PU Leather), anti-sweat, not stick fingerprints can be quickly wiped clean, easy to maintain for daily use. Anti-slip Design：The bottom of the case is equipped with anti-slip feet, which closely for the desktop, effectively preventing the hand rest from sliding or deflecting, and enhancing the stability of the desktop when typing. Ergonomic designs: The design for the wrist support, filled with memory foam to provide soft and flexible support, dispersing wrist pressure Long-time use： can relieve fatigue, ergonomic principles, care for wrist health. Precise fit for 81-key keyboards：Specifically for 81-key keyboards, it seamlessly integrates with the keyboards after installation and not take up extra space Provides exclusive support area for your wrists. Specifications: Material: Leather, plastic. Size:about 325×73×19.6mm/12.79x2.87x0.77in Weight: 150g. Color: black, white. Package Includes: 1PC keyboards Wrist Support note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.