My 25lb bookshelves were too much for it. The stand did not feel stable and the tilt mechanism did not hold them at the set angle, no matter how much I tighten the plastic screw. I don't trust them holding my speakers, so I guess I'll repurpose them for lighter duty since I stupidly threw away the packaging...
:edit:
I roughed up the anodizing where the plastic screw contacts the metal pivot bracket, added a metal washer, and it seems to hold now. Definitely not worth the $70, but I'll bump them up to 2.5 stars (rounded up) since I got them to work.
petramanWe are sorry to hear that you were disappointed with your stand. Thank you for providing your feedback and we will forward it to the appropriate team. If you believe the item to be defective, please do contact us at drop.com/support for assistance.