Even if you only have PLA to work with, this rocket will still be light enough to perform. A filament with a low density like ABS, ASA, HIPS, PP, LW-PLA, or LW-ASA is recommended for best performance.

Probably a good idea to print with a bright colored filament, and even then, you might never see it again. If you see mine, let me know! I have no idea how high it went, but it was just as high as some of the D engine powered rockets I have flown.

Compatible Estes engines 1/2A#-#T, A#-#T

Designed to be used with an Estes standard size guide rod (dia 3 mm).