Estes Model Rockets Rocket Fin Alignment Guide EST2231 2231 Timber Internal Gear Ratio: 12:1

Internal Gear Ratio: 12:1

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(1) USB Power Adaptor with QC2

and full right to position the tires for easy and fast maneuverability

Estes Model Rockets Rocket Fin Alignment Guide EST2231 2231 Timber Internal Gear Ratio: 12:1A 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!