This is the Fin Alignment Guide from Estes.
   Suitable for Ages 10 & Older with Adult Supervision for Those Under 12.

FEATURES: Fast & accurate fin alignment for three or four finned rockets
          No more guessing where your balsa fins go, this guide does it
            all for you
          Works with 3/32" (2mm) or 1/8" (3mm) balsa
          Easy to follow instructions are included

INCLUDES: One Fin Alignment Guide

REQUIRES: Assembly

COMMENTS: Due to small parts that could cause a choking hazard please keep
            away from children 3 years of age and younger

          For your safety and enjoyment, always follow the NAR Model Rocketry
            Safety Code while participating in any model rocketry activities

                                                                    tlh 4/15/11
                                                            updated tlc 1/10/13