Check the listing for details. Self-Locking Bricks MOC Technical Parts Building Blocks Differential Gears Kits. Color: Multicolor, Condition: New. Listed at 9.89 USD. Description: Made of high-quality ABS plastic material, precision machining and casting, and the fit between the parts is excellent, strong and not easy to break, there is a good experience in the use process. The product contains a variety of parts, and the accessories have various uses. When the building block parts are lost, they can be used as replacement parts to assemble. Adopt standard small particle parts, and the parts can be compatible with some mainstream brands in the market. The parts can be used interchangebly, which is very suitable for MOC or matching with other products. The color of most parts is subject to the picture as you see (the color may be changed if some parts are out of stock) Package included: 1 x MOC-31031 Differential Lock Building KitSelf-Locking Bricks MOC Technical Parts Building Blocks Differential Gears Kits MOC-31031 Description: Made of high-quality ABS plastic material, precision machining and casting, and the fit between the parts is excellent, strong and not easy to break, there is a good experience in the use process. The product contains a variety of parts, and the accessories have various uses. When the building block parts are lost, they can be used as replacement parts to assemble.Adopt standard small particle parts, and the parts can be compatible with some mainstream brands in the market. The parts can be used interchangebly, which is very suitable for MOC or matching with other products. The color of most parts is subject to the picture as you see (the color may be changed if some parts are out of stock) Material: Plastic ABS Power supply method: battery (not included) Packaging method: bagged Applicable age: 6+ Package included: 1 x MOC-31031 Differential Lock Building Kit WARNING: Not recommended for children under 3 years of age because of small parts. Please note that because of the way some parts and instructions are packaged in sets, some minor wearing and / or scratching (especially on larger parts) is inevitable. Click here for more itemsOther Technic Parts: M L XL servo motors, remote control and so on MOC Pneumatic Part For Wedo 2.0 45300 Core Set PaymentShippingDelivery timeReturn PolicyContact usPaymentPlease kindly make payment asap, so that we can arrange your order promtly. If you have any problem with payment, please feel free to contact us. ShippingWe provide tracking number for ALL orders. You can track your parcels. Delivery timeNormally it arrives in 10-15 business days to US and European countries. DHL /Fedex/UPS arrives in 7-8 business days. Return Policy1.All products are eligible for 30-days money back guarantee. 2.All returns should be guided by us. Please contact us for details before you return anything. Contact usPlease don't hasitate to contact us BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.We accept dropshipping, bulk orders and customized products. We are selling forArduino module, sensors, Nextion display and other oled or lcd screens. lidar range finder sensors, servo motors, various electronic components and for legoled, ect.