The HobbyKing Mini Quadcopter frame is an inexpensive platform for Quadcopter experimentation. Built from light weight ply wood and shipped in flat pack form to save on postage costs, Quadcopter fun does not get any more affordable than this! Specs: Height: 50.5mm Width: 539mm Bolt Holes: 12/16/30mm Source: http://www.hobbyking.com/hobbyking/store/__19595__HobbyKing_Mini_Quadcopter_Frame_V1_-_539mm.html
