Mini Quadcopter frame.
Arms have integrated motor mount.
Center hub fits 12mm diameter standard TREX 450 tail booms.
16xM3 (3mm) nuts and bolts needed to attach the top and bottom to clamp on the tail booms.
This set comes with integrated motor mount and arms with a motor to motor distance of approximately 21 cm
Motor mount allows for mounting motors in concentric configuration (top/bottom)