plastic, long service life and durable High speed and strong power Simple to use,Professional and very pratical. Portable, easy to carry and convenient to place. Clear texture and exquisite workmanship. Specification: Material:Plastic Color:Grey Package Includes: 1Pc( According to your choice ) or 4PCS(1PC 8879 and 1PC 8884 and 1PC 8881 and 1PC 8882) Notes: All motors in our store are compatible with all PF of original LEGO products. However, if you buy our receiver/ Remote Control(8884/8885/8879) separately to match the original LEGO remote control, it can"t match. It"s also impossible to buy the remote control to match the original LEGO receiver. Because Lego is infrared, our store is 2.4G channel. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!