Kit contains enough materials to make four off two bladed rotors for the SciOly helicopters:8 off 0.8mm x 15" Carbon Rods4 off 0.8mm x 9" Carbon Rods0.020" x 12" music wire for prop shafts & rear hooks48 off Laser cut balsa ribs3 dime size balsa discs2 sets of 4 Rotor hubs6 micron thisk plastic covering material (use 3M77 spray glue to attach to rotor.2 off Hanger loop and thrust button sets6 off Thrust washersThis kit does not contain a Plan or Building Jig, it is intended for the more experienced builder to experiament with their own designs or build from a downloaded plan from the internet.