RCmall Manual Gearbox - 4/5/6 Speed 1 pcs

here is the link for instructions: https://drive.google.com/file/d/13axrwGpb3zxqfifvHQhWSXDwTcPTXd0r/view?usp=sharing 6 Speed：B0F8NMD6H9 5 speed :B0F8NKNTPP 4 speed :B0F8NKPLQD Explore Mechanical Engineering with this Advanced Manual Gearbox Building Kit Build and experiment with a fully functional 4, 5, or 6-speed gearbox using this detailed MOC (My Own Creation) building kit. Designed for hands-on learning, this set helps you understand key mechanical principles like gear ratios, power transmission, and automotive engineering concepts through interactive assembly. Features: ✔ Versatile Build Options – Construct different transmission configurations (4, 5, or 6-speed) for an engaging building challenge. ✔ Educational & Fun – Ideal for STEM learning, this kit enhances problem-solving skills while demonstrating real-world mechanics. ✔ High-Quality Components – Includes precision-engineered gears, axles, and connectors in multiple colors (black, red, gray, and blue) for smooth operation. ✔ Compatible with 8883 Motors – Expand your builds by integrating motorized functions (motor not included). ✔ Challenging & Rewarding – Perfect for intermediate to advanced builders who enjoy intricate, puzzle-like construction. Whether you're a student, hobbyist, or engineering enthusiast, this kit offers hours of immersive building and learning. Once completed, the gearbox serves as both an educational model and an impressive display piece. Note: Compatible with standard building block systems.