Tube Marking Guide 663 and a sense of accomplishment

and a sense of accomplishment once the rocket is complete

and 4 igniter plugs — enough for multiple demonstrations or small group activities

Durability for the Classroom

making it an excellent tool for studying and experimenting with altitude

Tube Marking Guide 663 and a sense of accomplishmentThe Estes Tube Marking Guide gives students a simple, reliable way to mark fin and launch lug placement lines on model rocket body tubes. By creating clear reference points before assembly, students can work more accurately and develop stronger building habits. Build Alignment and Measurement Skills Using the guide encourages students to think carefully about spacing, symmetry, and component placement. These hands on steps reinforce practical STEM