The Sub250 Nanofly 20 2S is a small Toothpick frame that holds up to 2" propellers. The frame is designed for 1002/1102 and similar size motors with three mounting holes of M1.4 size. This makes it suitable for building a lightweight drone with 2S battery and analog video transmission. The frame can accommodate classic AIO boards with 25.5x25.5mm hole spacing. It is milled from 2mm thick carbon fiber. 3D printed housing can accommodate nano size cameras (14mm).