The Silverback Fully 3D Printable FPV Drone Frame is a fully 3D printable drone frame designed for 5" propellers. The bottom plate is designed to secure the battery and speed up battery changes. The arms fit 2280kv style motors with m2 screws. Standoffs screw on m4 screws to protect your electronics stack. The "antenna plate" fits my 30mm stack and holds my Spektrum serial receiver and generic brand VTX. The "FPV mount" fits a particular camera I use. Remember to check for overheated motors before flight to avoid crashes.