The Groomer Essentials Economy Arm & Clamp features a clamp with an extra wide surface and 2 bolts to securely attach it to tables up to 1 1/4" thick. The steel arm adjusts from 12" to 40" making this Arm & Clamp perfect for any pet.
Groomer Essentials Economy Arm Clamp 14945 
This grooming arm and clamp arm thick, strong and tall. So I think they would be good for a larger dog. I don't like how you can only clip it to a little O ring. And that ring seems to not tighten well. But maybe there is a trick to it. I'm glad I purchased this and I would recommend it.
I have 4 other grooming arms that compared to this, are junk! 1st off, this is heavy & well made. Solid welds, no sharp edges. Even though it is a little more cumbersome than the collapsible arm I used to take shows, this one doesn't flex or move with the weight of my dog when she wiggles. I liked it So much that I bought 3 more amd am about to buy #5! I have one I take to shows, 2 my friend bought from me she liked so much, 1 I leave at home and one I have at our vacation home so I can touch up there. Seriously, the BEST arm I own!
