116 pcs Technic Gear Axle Pin Connectors - Wheel Connectors Rack Gear Car Building Block Accessories Parts Set Compatible with Mindstorms Building Blocks Technic Toys (116 TECH Parts) This listing includes a variety of technical parts. Such as gear differential, pin connector with/without friction, train link. Various accessories can be widely used for MOC car construction and creation. Environmentally friendly ABS materials are used. Block parts or gear connection are good, neither loose nor tight, good quality. Various technical parts are suitable for making a creative model or creating a new design, a good addition to your model stuff. These are great parts for kids or adults who love to play building engineering projects. Great gift for festivals and holidays (Children's Day, Christmas, Halloween, Thanksgiving & New Year). Color: Gray, Black, Yellow, Red, Blue (The color of some parts will be different from the picture) Material: Plastic