DUBRO 3384 8 X 1.0mm QUADCOPTER PROP BALANCER SHAFT( prop balancer not included ) 3380 - 5MM Quadcopter Prop Balancer Shaft Works with: 3DR Robotics Iris Early DJI Inspire (Prop w/ Threads) 3381 - 6MM Quadcopter Prop Balancer Shaft Works with: DJI Phantom (I, II, III) Blade Chroma Hubsan X4 Pro 3DR Robotics Solo 3383 - 8MM X 1.0 Quadcopter Prop Balancer Shaft Works with: Yuneec Q500 Typhoon 3384 - 8MM X 1.25 Quadcopter Prop Balancer Shaft Works with: Walkera Tali H500