This part extends the landing gear of the AR.Drone 2.0 by 5 inches. Great for landing on sand, dirt, and other solid surfaces that would harm the drone if landed on with the stock short landing gear. Just use two zip ties to secure it to the drone's feet. Modified from http://www.thingiverse.com/thing:393673 The firstbuild I made I stop printing at 3mm thickness,, this will give the legs an good flex. I will make this thinner in model update after test, I drop the drone 30 cm free fall at indoor works great!!!