The Blast-Off Bulk Pack includes a variety of different engines – perfect for experimentation. These engines will allow your students or campers to test rockets across a range of impulse options. This bulk pack includes 6 A8-3 engines, 6 B6-4 engines, 6 C6-3, and 6 C6-5 engines!

PLEASE NOTE: This item will ship by US Postal Service only. You MUST HAVE a physical mailbox or post office box for delivery.