Estes 1751 Bulk Pack Of 1751 Alpha III Rocket-Building Kits, Beginner Flying-Rocket-Model Kits For Ages 10+, Classroom Science Experiments

Estes 1753 AVG Bulk Variety Pack Of Rocket-Building Kits, Beginner And Intermediate Flying-Rocket-Model Kits For Ages 10+, Includes Viking, Alpha, And

Estes 1754 Bulk Pack Of 12 Wizard Rocket-Building Kits, Intermediate Flying-Rocket-Model Kits For Ages 10+, Classroom Science Experiments

Estes 1225 Alpha Rocket-Building Kit, Intermediate Flying-Rocket-Model Kit For Ages 10+

Estes 7243 Black Brant II Rocket-Building Kit, Advanced Dual-Body Flying-Rocket-Model Kit For Ages 10+