This is a very light weight DJI O3 toothpick. I had to have custom titanium main screws that are 30mm long and threaded to 2mm and 1.6mm dual threads. I also had custom 1.6mm standoff made to hold the naked DJI O3 circuit boards in the toothpick. This drone is very light weight comming in at 122 grams with the battery, model finder and external receiver. The DJI Remote 2 isn't very reliable. I will remove the extenal receiver to reduce 2 grams of wieght once dJI has decent firmware for the Remote 2. I will list ebay links in the parts list so that you can purchase the custom hardware. I had to spend $2,000 on the custom hardware and I have a few hundred of extra main screws and custom nylon 1.6mm spacers. You can cut down your own main screws out of steel using HSSE threaders of 1.8mm x 0.35 pitch and then 1.6mm x 0.35 pitch.
Notice the battery is perminently fixed with 20Lb Spider Wire fishing line. There is some velcro above the battery to make a spacer for the screw heads. This quadcopter is my main everyday flyer. It can fly 15 minutes in hover and 7 minutes in bando. I just fly a single flight and then charge. It is small enough to fly anywhere. The O3 camera is also naked and mounted with fishing line in the Larva canopy.