Features: *High-Quality Material: This building block toy is made of high-quality material, which is wear-resistant and durable for long-term use. *Parent-child games: Such toys can be used to build closer contact and interaction between parents and children. *Practice hands-on skills: Not only is this toy an excellent learning tool that encourages learning about mechanics and engineering, it helps children focus-on learning colors, matching, sorting and identification, stimulating early childhoods development. *Battery Powered: This game is powered by 1*AA battery not included, just flick the switch to automatically rotate all gears, no need to start manually, easy to use. *BEST GIFT: This fun children39;s toy is a perfect holiday gift for children on special holidays such as Children39;s Day, Christmas and birthdays. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Description: Material: plastic Specifications: 83pcs/165pcs/203pcs Packing size: 36*22*6cm/41*30*6.5cm/41*29.5*5.5cm Battery: 1*AA battery not included Package List: 1 set x Toy