Just remove the guards and keep the landing gears to keep the 11minutes flight.
No that's protecting sensitive part's of tello and that's very light weight to be notice....Was ment as a joke, but on the flight time. Have you considered removing the top cover and see how many more minutes you get?
They weigh next to nothing. I have sold 12 sets and 0 complaints about flying time.In all honestly, I wouldn’t use these. They put more weight into the Tello, therefore cutting on battery life. The Tello with the box accesories can fly for around 11 minutes. Take off the prop guards and then you get the claimed 13 minutes. If you have carried the prop guards, they weight nothing, but to the motors, is enough to lose 2 mins of flying.