This is an extra-large Lego mechanical gear set piece with 128 teeth. It’s precisely designed and built to be sturdy. The outer edge of the gear has clear serrations, while the inside is filled with symmetrical hollow triangles and circular holes. A central cross-shaped shaft hole ensures a secure fit. Its cool design makes it ideal for large 3D-printed mechanical models or creative installations, showcasing industrial aesthetics and mechanical charm. Whether for collecting or actual assembly, it offers an excellent experience.