Features:High-quality material: This track toy is made of high-quality material, the surfaces is round and smoothing, safe for children, very suitable for children to play.DIY assembled electric car: Each puzzle track set can be assembled with any combination of various puzzle modes, and can be freely disassembled to assemble the track mode you want.Educational Puzzle: On the sot puzzle board, there are indicating numbers on the back of each board to help children create their own layout schemes. With different brain challenges.Early Learning Educational Toys: Help kids think about track direction, shape and assembly. Develop hand-eye coordination, logical thinking, creativity, color and shape recognition, spatial imagination.Great Gift: This track toy is a great gift for kids on Christmas, Thanksgiving, Birthday, Children's Day and other festivals.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurementDescription:Material: plastic and electronic componentsApplicable age: 3 years old and abovePower supply: 1 AAA battery (not included)5PCS Packing Size: 24*5*16cm15PCS Packing Size: 27*5*19cm25PCS Packing Size: 30*5*22cm