Bought them to support 400lb cnc. Used on a sleep number adjustable base. We move the controller around every once in a while, and it's extremely heavy.

Great value, costs much less than at big retailers. Thick, soft, and good adhesive.

They stick well and seem like they are quality. They did seem to have a decent amount of stick to hold onto the silk sash. I'd assume they’d hold onto firmer surfaces even better. Instantly, there was no more rattle.

These are worthless. Total garbage. Returning them now.