1) An excellent strong lightweight glass fiber Quadcopter frame with landing gear and a bonus power distribution board (PDB) build-in for neat and easy wiring. This Quad has 480mm motor centers so is ideal for 9 and 10 inch props and it also has an adjustable battery mount to achieve the perfect weight distribution and the bottom frame is ready to take a whole host of camera mounts and gimbals making it perfect for FPV and filming projects.2) The S500 is supplied with 2 x blue and 2 x white arms that are super ridged and have a carbon fibre rod through the center making for the strongest arms we have seen to date in this style of frame. The Blue and black arms make orientation much easier and there is no need for different colored props. The included landing gear has plenty of height making it suitable for GoPro type gimbals or similar. Another feature of the S500 is that when assembled the arms have a slight up sweep， this gives the Quad a dihedral effect which helps make it very stable， especially when descending from altitude.3) Assembly of this frame is super simple with pre-threaded sleeves for all the frame bolts so no lock nuts are required. It utilizes one size bolts for the entire build which means you only want one size hex for the assembly. Another feature is the locating tabs for the arms which enables you to achieve the perfect alignment when building. The motor mounts are ready to take a selection of motors with mounting hole centers of 16， 19 and 25mm once again making this a very universal frame at a very affordable price.Features:1) Built from quality glass fiber and polyamide nylon2) Pre-threaded brass sleeves for all frame bolts3) Locating tabs for arms4) Colored arms for orientation to help you to keep flying in the right direction5) Integrated PCB connections for direct soldering of your ESCs6) Built-in glass fiber tube to reinforce the rigidity of the arm7) Arms tilt up design is reference to dji s800， it can give your quadcopter more stable and good for FVP.8) Easy assemblySpecifications:1) Motor centers: 480mm2) Height: 170mm3) Motor Mount Bolt Holes: 16~19~25mm4) Propellers: 5030 / 5045 / 6030 / 5) Flight Controller: Naze32 Acro / CC3D / mini APM / Crius MultiWii / 6) ESC: 10-12A 7) Batteries: (1500mAH - 2200mAh)， (25C - 45C)， 3SRecommended hardware for a complete build (Not inclubed):Motors: (1806， 2204， 2206)， 2300kvNote: all the motors， ESCs， batteries， propellers and flight cantroller are NOT inclueded.Package Include:1 x S500 Glass Fiber Quadcopter Frame Kit 480mm - Integrated PCB Version (Blue and White arms)