I have had them for a few years and with a larger monitor than what is stated, they had absolutely no problem, very sturdy construction and most importantly, they do not wobble back and forth, you get what you pay for after all since they cost about as much as the free standing bases and even more.

Very good metal construction, sturdy and immovable. I placed the Tannoy Reveal 402 on top and they fit perfectly. The adjustable height allows you to bring them exactly to the height you want. The plastic feet for the base and speaker are a very good addition because they provide even greater stability.

I got a pair for the Presonus Eris E5.

Heavy and solid, excellent construction, adjustable height without steps so you can set it wherever you want.

Due to its design, it creates enough space under each monitor either to put other things or to keep it empty and tidy the desk, etc.

They come with two sets of rubber feet, the small ones go on top to decouple the base from the speakers, the large ones go underneath the base to decouple the stand from the desk.

Definitely not the cheapest, but definitely worth their money.