About This Comprehensive Components: This 800pcs electronic component kit includes 600 high-precision metal film resistors (ranging from 10Ω to 1MΩ across 30 key resistance values) and 200pcs 5mm LED diodes, making it perfect for a wide array of electronic projects. High Precision: The resistors in this kit boast a tolerance of ±1%, ensuring accurate performance and reliability for your circuits, which is essential for professional and hobbyist applications alike. Convenient Organization: Packaged in an anti-static compartmentalized box, this kit keeps your components well-organized and easily accessible, preventing damage from static electricity during use. Dual Labeling System: Features a user-friendly resistance/value dual labeling approach, making it easy to identify and choose the correct components for your projects, enhancing efficiency during assembly. Customer Support Assurance: We stand behind our product quality with dedicated customer support, ensuring you have assistance for any inquiries or issues, so you can focus on building with confidence.