Estes EST2250 Mini Engine Starter Plugs, for Rocket Engines, (40pcs)

Description:Estes Rockets 010036 A8-5 Rocket Engines 3 Pack, Was EST1599The Estes A8-5 Engine offers strong peak thrust and a 5 second delay, making it perfect for lightweight rockets that benefit...

Description: Estes Rockets 010021 B6-4 Rocket Engines 3 Pack, Was EST1606The Estes B6-4 engine is a versatile and dependable choice for launching standard-size model rockets. Designed for rockets...

Description:Estes Rockets 010030 E12-6 Rocket Engines 2 Pack, Was EST1693The Estes E12-6 is a high-thrust engine with a 6-second delay, designed for heavier rockets up to 14 oz. It offers powerful...