This micro quadcopter is 3D printed with ABS plastic parts. The arms are capable of bending without fracturing under a heavy impact, yet they are rigid under a normal load. These attributes are perfect for a micro multicopter frame. Kits and parts are available for purchase from my website: http://polakiumengineering.com/?page_id=1989The primary required components (not included) are as follows:Detailed build instructions can be found here: http://polakiumengineering.com/?page_id=1989If you like my design, please consider donating or purchasing a kit from my website.