116 pcs technical gears, axle pin connectors - wheel connectors, gear racks, car building, brick accessories, parts, set compatible with Mindstorms building blocks, blocks, technical toys (116 TECH parts). This pack contains various technical parts. Such as gear differential, gear rack, pin connector with/without friction, tow link. Various accessories can be widely used for MOC car construction and creation. Environmentally friendly ABS materials are used. Bricks or gear connections are good, neither loose nor tight, excellent quality. Technical parts are compatible with standard-sized bricks from other major brands. Various gears, axle parts, etc. can be used as replacements for assembling, designing and building your project, such as models of robots, cars, cranes, engineering vehicles, etc. Variety of technical parts are suitable for making a creative model or creating a new design, a good complement makes your model stuff. These are great parts for kids or adults who love to play building projects. Great gift for festivals and holidays (Children's Day, Christmas, Halloween, Thanksgiving and New Year). New and high quality. Color: Gray, Black, Yellow, Red, Blue (The color of some parts will differ from the picture) Material: Plastic Suitable for all major brands.