??What You Can Get: connecting arm x 6, top cover x 1, the next cover x 1, screw x 36. ?Built from quality materials: The main frame is glass fiber while the arms are constructed from ultra durable polyamide nylon ?The added lift capacity of a hex configuration makes this frame ideal for carrying larger payloads such as camera systems and other electronic components. ?F550 also features colored arms (2 white, 2 black and 2 red) which are great for orientation. It helps to keep you flying the right direction without the need for different colored props. ?Assembly is a breeze with pre-threaded brass sleeves for all of the frame bolts, so no lock-nuts are required. It utilizes one size of bolt for the entire build, making the hardware very easy to keep in order and only requiring one size of hex wrench to assemble.