The bed guard was delivered very quickly. It no longer needs to be built. Only take from the box and unfold, slide under the mattress and you're done. The temple lies under the mattress in my opinion is so broad that it holds well under dünneneren mattresses. We bought the grid as a protective case for the high bed of our daughter. Through this grid of failure protection is nochhmal 20 cm higher. The workmanship is very good. No reasons to complain about anything.