MICRO HYBRID FUEL GRAIN COMBO PACK
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The MicroHybrid Fuel Grain Combo Pack consists of 3-each of our Fuel Grains:
This is the perfect combo for experimenting with the performance of different fuel grains!
- 3 x Paper Fuel Grains
- 3 x Nylon Fuel Grains
- 3 x PVC Fuel Grains
- 3 x Polypropylene Fuel Grains
- 3 x HDPE Fuel Grains
INDIVIDUAL FUEL GRAINS
Have a preference for a particuliar Fuel.. the choice is yours