This product comes with one single use 18 inch long O-6300 Black Smoke multi port fuel grain, six 5/16 inch push to connect injectors, one 3/8 inch push to connect injector, one 5-foot long 3/8 inch high pressure black nylon fill line, three 4 foot long 5/16 high pressure black nylon crossover lines, one 3/16 push to connect combustion chamber vent fitting, one 5 foot 3/16 inch high pressure clear nylon vent line,  three 252 o-rings for use on the nozzle carrier and graphite, two 236 o-rings for use on the graphite nozzle divergent, seven 12 volt resistor igniters with 4 foot leads, thrust curve data sheet for reload purchased and the Contrail Rockets 152mm Hybrid Rocket Motor Reload Instruction Manual.  Note that this reload is designed for Contrail Rockets 152mm 15000cc 72-inch hardware and requires a fast graphite nozzle.  Note that nozzle extends past end of motor thrust washer.  Warning each reload is for a single use using a reload more than one time can damage your hardware by a burn through or CATO.  Please read the 152mm owner’s manual before purchase.  Follow all Warnings to protect yourself, your fellow flyers or observers, your rocket and the environment.