Estes A3-6T Engines (4)

The Estes A3-6T mini engine is a specially produced, 13mm model rocket engine that has a 6-second delay. Enjoy watching your rocket soar at its highest heights for an extra 6 seconds before it starts the descent with this incredible mini engine. Each package includes 4 engines, 4 starters, and 4 mini starter plugs.

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