Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: What are the deminsions for the plate?
Document: Very strong , but wont hold a very large TV due to the plate dimensions.Slides out ant swivels without effort.
Extremely well made product, and works exactly as advertised. Cons:  it doesn't come with any instructions or hardware. I used a hot melt glue gun to attach tv to plate.
Nicely built piece perfect for our old armoire. I recommend this for holding led and LCD tv's. We had to add a wood piece to the metal plate but went on easy as the plate has predrilled holes.
It's really easy as the metal plate has holes in it. The quality of the pullout swivel is top rate and it's NOT made in China like everything else we buy. It's made in Italy. Also note, no screws came with this product.
I was worried as to whether bumping it would make it slide too fast and cause the TV to wobble off the stand, but under the weight of the TV (and the plywood platform I attached to the plate), it's just fine. It's designed to be mounted to a horizontal surface, which is exactly what we have (there is a black platform inside the armoire). I used 6 3/4" flat head screws (not included) to mount it to the platform.
I mounted the plywood to the metal plate with 6 5/8" flat head screws (again, not included).The entire project came out beautiful and I can now position the TV in a good position for viewing, as well as easily access the ports at the back if need be.The seller shipped quickly, the unit is very well made/sturdy, and I notice no sagging when it's fully extended.
It took a couple of hours to install and I adapted it with a $6 veneer closet shelf from Home Depot. The pre-drilled holes on the plate made this very easy to do and I like that better than to just set the television onto the metal rotating plate of the product; especially since the stand on my tv is wider than the metal plate. My supposition is that this is the manufacturer's intention since the holes are already there.
This is a very sturdy  and well-working product. Be aware that, at least with our TV, you cannot attach the TV to the plate. Thus the TV sits on top which makes sliding back and forth a bit precarious! We put dowels in the metal plate's holes, which fit into the TV's base thus at least avoiding a lot of sliding around. We also used heavy duty velcro strips with two-sided adhesive to steady.
bought it for my father who is handicap. just wish it would have had hardware. he loves it and that is all that matters.
You should have more than rudimentary skills & tools.The price was reasonable for the quality of the product & was shipped in a timely manner. Kate is happy & the cost in time & money is still cheaper than a divorce.
Answer: 9" X 12"----We have our 40" TV mounted on it.  I put velcro on the plate and TV stand.  It is very stable and, hopefully, will withstand moderate earthquakes here in CA.