I use it to hold an iPad 10 which is anchored to a glass side table. The main leg is set almost vertical, so not effecting any sag. So far it works well, well enough that I ordered a second one for the bedroom, fastening it to the bed head board. I don’t use the provided clamp in the latter case, I discreetly mounted a small block of oak to the rear of the headboard, with a 15/32 hole bored vertically into it. Works great and I have a spare clamp. Satisfied customer!