Estes Launch Day Pack - B4-4 Engines x3 (9 Engines)

Three 3-packs of Estes B4-4 engines - nine engines total, enough for a full day at the field without rationing flights. Each 3-pack includes 4 starters and 4 starter plugs.

Ships via USPS Ground Advantage under our USPS hazmat authorization. A physical street address is required for delivery - rocket engines cannot be shipped to a PO Box. Follow the Estes safety code and all local rules, and supervise young rocketeers.