Build creepy, crawly, buggy-eyed creatures that MOVE with this award winning Oogly Googly™ Gears set! The possibilities are endless. Start with the motor, add some gears, a couple of claws, an eyeball or two (or three), a bit of imagination and… you've created a Monster! This 100-piece set can be used alone or with other Gears! Gears! Gears!® sets. Requires 2 AA batteries, not included.