BW&reg; FPV Anti Vibration Universal Type Landing Skid Kit Gear for F450 F550 Quadcopter Quad HexaCopter FPV Landing Skid Kit For DJI F450 F550 Quadcopter Hexacopter Universal and simple design suitable for most quadcopter hexacopter multi-copter Glass fiber tube + Plastic feet Maximum height can reach up to 6.5inch(16.5cm) Easy to install and convenient to use.