Estes 1913 Zolt & Volt Air Rockets, 2 Pack – Fully Assembled, for T-Bolt Air Rocket Launch System Temperature Accuracy: ± (1

Temperature Accuracy: ± (1

18p and 28p

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

which is designed with dual channels and 1 external trigger channel

Estes 1913 Zolt & Volt Air Rockets, 2 Pack – Fully Assembled, for T-Bolt Air Rocket Launch System Temperature Accuracy: ± (1Set 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.