I had my doubts about this when I ordered it. NO MORE DOUBTS NOW! I put this cupholder in place on my over-hospital-bed-table. That was weeks, ago! It has been in the same spot where I tightened the screw to fasten it the table, every since!!! It stay tight & sturdy. No problem holding my 24. oz. Insulated Cups with drink & ice in them. Never had to adjust or re-tighten the screw, because it stays secure. I love that I can swing it out away from the bed as I get up, (since this table is made to stay over the bed), or I can swing it in towards me in the bed to bring it closer. Yet it still stays just as tight as the 1st day I put it on there. It is so easy to put the handle on the cup, by sliding the gray bar up into the groove of the cup. The handle is very securely fitted then, & won't slip out. I think you can use adhesive, but I didn't need to. Even thought of buying one for the other side of the table. They had a few color choices, & I just like red alot to go with the black table it is pretty & stylish. I am often on bed rest, so mine gets alot of use The gap between the screws to tighten it to a table is wide enough to fit very thin tables or one that might be quite thick. It has not scratched the paint off from being attached, or the swiveling motion. An excellent purchase, at a very low price!