Great item! made my heavy e5 fly much better as a 600. Nice kit with two booms and two control rods. I was ticked that it is a kit but doesn’t include everything you need. Make sure to get the special control rod ends. Mine weren’t re usable. Had to wait a whole extra week and paid more shipping for a part that should be included in the “kit”. The torque tube doesn’t include ends either. I had to pretty much destroy my old torque tube to extract the ends. Every other manufacturer includes these parts in their kit.