This kit was ordered for the Club annual Challenge.As part of a delivery "thank you"for a great service I mentioned that the box the kit was in was strong, but not as strong as the Courier, who delivered a box bout 2 inches shorter than was sent. I was amazed to be sent not 1 but 2 replacement tubes for free !! Due to delivery problems they arrived 2 days before the competition, I finished the building 45 minutes before the start. Despite landing in a large tree I came second. Without the amazing service I received ,from this company, not just now, but over many years it would not have happened.The kit is amazing. The most difficult thing is getting the 3 fins lined up! The 3 rotor blades sound difficult but if you have thin cyano and make sure you don;t glue the formers to the blades all will be well It really is within the ability of a newbie to rocketry. You can put up B6-4 or C6-5 rocket t the same and they will be reloading whilst you are still in the air A kit, so easy to put together, just remember to bring along a needle and cotton ! John.