2231 Model Rocket Fin Alignment Guide
2231 FIN ALIGNMENT GUIDE by Estes
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A great tool from days gone by. No more guessing where your wood fins go, this guide does it all for you. Easy to follow instructions are included. No more door frames needed to draw that straight line for fin placement. Works with 3/32" (2 mm) or 1/8" (3 mm) wood. (Body tubes and wood not included.)
