Estes 1913 Zolt & Volt Air Rockets, 2 Pack – Fully Assembled, for T-Bolt Air Rocket Launch System 3 Packs of Estes B6-4

3 Packs of Estes B6-4 engines - total of 9 engines (each pack includes 3 engines

) The 2565 can be used as a supplement to the 2566 investigating renewable resources chart (sold separately) for versatility

18p and 28p

Advantech #: 40BS8F

Magnetic damping speeds weighing

Estes 1913 Zolt & Volt Air Rockets, 2 Pack – Fully Assembled, for T-Bolt Air Rocket Launch System 3 Packs of Estes B6-4Set of 2 fully assembled air rockets Requires 1900 T Bolt launch system (not included) No Assembly Required More air rockets = more fun! No assembly required! Nothing needed but air! Designed to work with the T Bolt Air Rocket Launch Set, grab these two and have contests with your friends.