Estes 2231 Fin Alignment Guide – Adjustable Model Rocket Fin Gluing Jig for BT-20 to BT-80 Body Tubes

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Fast & accurate fin alignment for three or four finned rockets Fits body tubes ranging from BT-20 to BT-80 Can accommodate either 3/32 in. or 1/8 in. balsa, bass, or plywood fins E asy to follow instructions are included No more guessing where your balsa fins go, this guide does it all for you! NOTE: Color may vary. Body tubes and wood not included. A precision molded accessory that makes it easy to glue three or four fins to various sized body tubes ranging from BT-20 to BT-80 diameters. Unique and adjustable vertical fin holders can accommodate either 3/32 in. or 1/8 in. balsa, bass or plywood fins. This is a must-have tool for any serious model rocket builder. Never attach your fins wrong again and remove that painful process of holding them in place while the adhesive dries! Show more