Only suitable for a beach mattress or maybe a ball...
And without a valve, only the three plastic ones with a large indentation relatively...

For €12.5, it does its job just fine. Especially when connected to a power outlet, it performs well. It takes a little longer at 12v.
As for the construction, it is cheap, with small air leaks and a smell of burnt plastic. So far, it has been used about 20 times without any problems