This item was purchased approximately 20 years ago and has been stored unopened in the attic. When three AA batteries are inserted, the propeller rotates and the item moves forward. The lights on either side of the machine guns flash (red and green). The machine guns on either side can be attached with screws (two screws on the back of the cardboard insert), but it's not necessary. (Includes 3 new AA batteries) Size: W53cm x D8.5cm x H15cm The diameter of the 4-blade propeller is approximately 40cm.