100% pure power -- it's the ultimate LEGO TECHNIC creation! With its immense size and remote-controlled Power Functions, this giant yellow machine is the king of the construction site. Set it in motion at the push of a button and send it to do your bidding. Working pistons, turning treads, and other details that move and function just like the real thing! Raise and lower the front blade and the ripper on the back using the remote control! Use the remote control to drive and steer the Bulldozer! Bulldozer measures 18" (46 cm) long and 7" (18 cm) high! Includes remote control, 2 receivers, 2 motors, 2 XL motors and a battery box! Requires 6 AA (1.5V) and 3 AAA (1.5V) batteries, not included.