About this item A TAKE APART DINO: This is a Robo T-rex Dinosaur which you will need to assemble it at the first time of playing, easily build it by following our instruction, no tools needed, kids will have fun and learn while assembling. ELECTRIC FUNCTIONS: This Robot Tyrannosaurus can walk, roar and spray the mist while walking,with simulation roaring sound, and lights effect on the body.all these functions are operated by the power of 3xAA Batteries (Batteries are not included in package) SEE THROUGH TOY WITH GEARS INSIDE: The back of the dinosaur is made with transparent material which you can see through it, there are merchanical gears designed inside the body and kids can see rotating gears while the dino is walking, the kids can see how the motors and gears work during playing with it, this may activate or stimulate their interest in Engineering. STEM TOYS & GIFTS FOR KIDS: This is a ideal gift for kids aged 3-5, children are always curious about the prehistory Jurassic Era and would like to have more dinosaurs in their room, it is suitable for occasions or holidays like kids party, birthday, thanksgiving, Christmas, Easter, New Years and others IMPROVE IMAGINATION: this electric robo dino toys can keep children engaged, entertained, and learning for hours, it can help improve their intelligence, brain development. made of high-end ABC plastic and 100% safe for kids to play. product had passed the testing of the ASTM F963 and CPSIA for United States Market, also passed the testing of CE for EU and CCPSA for Canadian Market.