Ultimate Tube Marking Guide™

The Ultimate Tube Marking Guide™ is a classroom friendly tool that helps students build rockets with accuracy and consistency. Because fin and launch lug alignment directly affects stability, this guide supports better results while reinforcing core STEM construction habits.

Consistency for Group Builds

In classrooms and youth programs, repeatable outcomes matter. This marking guide helps every student create straight, evenly spaced guide lines, making finished rockets more uniform and easier to evaluate.

Streamlined Instruction and Setup

By reducing measuring errors and rework, the guide saves valuable class time. Instructors can demonstrate the process once, then students can mark their tubes quickly and move into assembly with fewer corrections.

Durable Tool for Ongoing Programs

Made from sturdy, precision molded plastic, the 18 inch guide is built for repeated use across multiple sessions and kits. It works with all Estes body tubes, making it a reliable tool for labs, camps, and after school programs.