Various crashes with the KingKong Smart100 mini FPV drone from Banggood. This thing is tougher than others in it's class, great to learn to fly on as it will take a hard crash and be flight ready in less than 10 secs usually. Just flip it upright and re-arm, away you go. You do lose the odd prop here and there when hitting hard though. They're cheap enough I keep 20-40 of each on hand... maybe lost 6 in 3 months of flying, just depends on how often you crash.