I don't think it 'breeds crickets' lol. It's useful for keeping crickets in if you don't like touching them. The idea is they climb into the black tubes because the like dark places, then you simply take out the black tubes and shake them into the feeding tank.
They are really useful tho! I used to have a small one until I realised it was just way to small for the crix-but I kept the tubes because its just so much easier to catch multiple crickets at a time with them-rather than trying to get them by hand or shake them off the egg boxes.
I think if you want to breed crickets you have to provide a group of adult crickets with some 'laying trays' and then remove these once they have eggs in them and keep them somewhere warm. Don't know the exact details but it's a bit more complicated than roaches

Oh and happy birthday!
