I ordered a set of the exact item the OP posted. I did it for two reasons. The first is because I could install them on my BX and 1.25 is about the limit with my MMM.
The second reason was I was wondering if they could be stacked, in other words, could two be used together to double the width of the spacer, since they are so inexpensive?
First, the quality looks good. I think they will work well for me. Second, being hubcentric I think if my son-in-law wants more, two could be used in tandem on each side with no issues. I would probably recommend low strength lock tight on the inner lug nuts just as a precaution though.