A8-3, B4-4, B6-4 Mini Bulk Pack - Includes a Total of 9 Engines

Engines do what they're required to - shuttle your hand-made creation into the sky! (And maybe into trees, powerlines, stranger's back yards....) And they're excellent in doing so. Starting with the A8-3, you can get a sense of the fun of rocketry without having to have long distance running stamina. Engines go in the bottom of the rocket, typically by clipping in to the engine holder (if you built it properly). Once the igniter is shoved in and secure, the countdown builds excitement. Always count down. Check for stray fools walking into the launch area. etc. These are designed to just-fit, and they do. They're a one use item, so be ready to buy lots of these, if you don't lose your rocket during a B6-4 flight... Very fun! Use on low wind days for the next enjoyment factor. Use on windy days if you want to get some cardio in. Perfect for kids, and tinkerers. They also can be used on other things, like toy cars, your sister's favorite doll (duct tape works), or whatever else. But remember, they're rocket engines, and are as dangerous as they are fun. Adult supervision recommended. (Losing a rocket on its solo flight can crush a child's excitement)

It's what I ordered and came when expected.

Just what I was hoping for

As advertised.

Works great I like the A-motors because they don't go up too high allowing the kids recover the rocket easily