Prop Balance Rod - Speedy Prop Balance Rod (for DJI Phantom 1,2 or 3, DJI 9450, 3DR Iris+, 3DR Solo, Blade Chroma) Works w/ DJI Phantom 1,2 or 3, DJI 9450, 3DR Iris+, 3DR Solo, Blade Chroma Aircraft Grade Aluminum Machined on CNC lathe to within tolerance of .0005" 5.5" long rod