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 children's toy is a perfect holiday gift for children on special holidays such as Children'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 Material: plasticSpecifications: 83pcs/165pcs/203pcsPacking Size: 36*22*6cm/41*30*6.5cm/41*29.5* 5.5cmBattery: 1*AA battery (not included) Include:1 set x Toy