This is a capable enough launcher. It has a key you have to insert as a safety precaution but it takes quite a bit of force to hold it down. The bulb that indicates that the circuit is armed can be difficult to see in bright sunlight. Overall, this isn't fancy but it will get the job done.

I have and electron beam launcher. It does work, but not well. I wanted my 5 yo son to launch the rockets maiden voyage, but the safety key is too hard to push down for him so i had to hold it down. The launch button for whatever reason took at least 20 seconds to ignite even an a-series motor and he thought he was doing something wrong.

I have two of these in my field box and they have never failed me. Great for a lpr rockets!