Features: Smooth Scrolling Experience: The M190 replacement wheel features precisions engineered plastic construction for effortless movement during web browsing or document editing. Ergonomic Hand Fit: Shaped to follow hand pose for reduced fatigue with prolonged use. Perfect for frequent users like designers and programmers to maintain efficiency . Resilient Construction: Made from upgraded plastic materials that overcome ordinary components, ensuring longevity for both home and professional setting. Simple Device Connection: Enables quick plugs play functionality across multiple devices without installation requirements. Portable Compact Design: Lightweight and space saving size makes this replacement component easy to transport, maintaining stable functionality for mobile computing needs . Specifications: Component: plastic Size: Standard size, suitable for most mouse wheel replacements For M190 mouse Technical parameters: High-precisions scrolling design to ensuring a smooth scrolling experience Color：Red/Blue Package Includes: 1PC For M190 mouse wheel note: Due to problem of lighting effect, there might be certain tolerances in product, please understand. Please allow 0-1cm error due to manual measurement.