Ultimate Tube Marking Guide™

The Ultimate Tube Marking Guide™ is the essential tool for builders who want cleaner rockets and more reliable flights. Accurate fin and launch lug alignment plays a major role in stability, and this guide makes precision easy from the very first step of your build.

Fast, Confident Marking

Slide your body tube into the guide, mark your lines, and move straight into assembly with confidence. The rigid 18 inch length keeps your markings straight and evenly spaced, helping eliminate crooked fins and uneven lug placement.

Built for Repeat Builds

Made from durable, precision molded plastic, this tool is designed for repeated use across countless projects. It holds up in your workshop and stays ready for the next build day, launch prep, or last minute touch up.

Better Alignment, Better Flights

When your fins and launch lugs line up cleanly, your rocket looks better and flies better. The Ultimate Tube Marking Guide™ helps you build with consistency, so you can focus on the fun part, liftoff.