Electron Beam Model Rocket Launch Controller

I have used this product launching at least 100 rockets now with a group of Cub Scouts in my Den and have not had issues with launches. As another person wrote, the safety button was tough to hold down for a young person, but after about 15 uses it seemed to soften the rubber on the safety pin and it worked fine for ages 8-13 yrs.

Have had it 4 years, lost it in a field for a month once, rained during that time, found it later on, still works great!!!

It works barely. Always seems like it takes forever for the rocket to launch and I hate messing with tangled wires!