18" LED Walking T-Rex Dinosaur Toy - Light-Up, Roaring, and Moving Prehistoric Fun for Kids. Our green and tan LED Walking T-Rex Dinosaur Toy is mammoth fun at a prehistoric price. At 18" in length and 12" tall, this walking, roaring dinosaur toy for boys and girls moves, makes sounds, and light ups. Powered by 3 replaceable AA batteries, included and installed, a simple toggle of on/off switch has the primitive T-Rex predator on the move. With each step forward, the green spine down its back lights up and flashes red and blue as it ferociously walks with a brontosaurus in its lifelike jaws. Perfect for dinosaur and T-Rex lovers ages 3+, this LED Walking T-Rex Dinosaur Toy makes a megasaurus birthday or holiday gift. Get this dynamic Walking T-Rex LED Dinosaur before it goes extinct!