Check the listing for details. MOC Pullback Motor Technical Parts Compatible with Standard Building Blocks. Condition: New, Made in China. Listed at 17.00 USD. The MOC Pullback Motor Technical Parts are a set of building toy pieces and parts designed for standard building blocks. The manufacturer recommends this product for ages 18 and up, indicating a more advanced level of building skill. With a compact product dimensions of 4 x 2 x 2 inches and weighing 2.11 ounces, these parts are lightweight and easy to handle. The pullback motor feature allows for an added level of functionality to building creations, making it a valuable addition to any building toy collection. The product has received excellent customer reviews, achieving a top rating of 5.0 out of 5 stars.