Need extra Starter Plugs? You've put them away and can't find them or you've lost them? Regardless of the reason, we've got you covered now! Included are 20 each of the yellow plugs for A8 and B4 standard engines and magenta plugs for B6 and C6 standard engines. .

40 plugs included

20 each of the following:

    Yellow for A8 and B4 engines.
    Magenta for B6 and C6 engines

Estes model rocketry is recommended for ages 10 and up with adult supervision for those under 12. Unless otherwise specified, all models require assembly. Tools, construction and finishing supplies sold separately. In order to launch, a launch system, model rocket engines, starters and recovery wadding are required - sold separately-unless otherwise specified.