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

Input:
Question: What is the distance between wall brackets?
Document: Do notice that this model is NOT TEAK! but still extremely well made...Chrome & or stainless as required. Claims will support 300 #'s..but I would feel limits as to the type of wall construction it would be ATTACHED to. The brackets and hinges are quite confusing at first..so do what I did.. temporally hang the bracing bar..("U" shaped support) above the desired area while you measure,mark drilling holes ect..
I think the term &#34;block&#34; is really the raised upper ridge which holds the unit upright against the wall. Further confusing the issue is the fact that the plastic molding seems to contain a blockish-looking piece at the bottom, but I think that is only part of the injection molding process. The round, three-hole support brackets are particularly sturdy. I attached one side to a stud an the other to tile/backer board with expanding metal anchors.
Nice looking seat but If you don't line up with studs, beware! Since I did not line up with studs, I substituted with 3/16 toggle bolts (stronger than the Molly bolts supplied) for the top two holes in both top mounting brackets. The first time it was used by a 145 pound female,  the seat ripped completely out of the wall! The installation absolutely requires attachment to studs. Aside from grossly insufficient attachment design, the seat looks good and folds nicely.
The upper brackets must be accurately located so that they will "nest" into the slots on the rear wooden slat. I got so frustrated that I made a template out of 1/4" plywood so that I knew that the holes would be where they were supposed to be.
I like this seat very much. It did wonders for me when I was pregnant. But try to mount it on your wall when you are very calm because it is no easy task. Once you have done it, though, you'll have no complaints.
I ordered it while remodelling my bathroom, with my eyes on to a future when I'll be older and it s wonderful. Needs serious support on the wall (it's going to support your whole weight! ), so it's advisable to have itn installed when you gut-remodel your bathroom.
This was the size of seat I was looking for, it's compact when folded to wall, and gives a comfortable small seat when needed. When installed into studs, it provides a sound, safe chair. Construction and fit are good. Wood and the finish are excellent. It folds up and down very easily.
It is a very nice bench, only problem is that it would not match up to studs, so I used the anchors that came with it. After I installed and used, the part on bench started to pull from wall with anchors. I then removed from wall and re-installed with butterfly bolts. It is holding up much better.
Wonderful addition to the shower for disabled or any person to either sit, shave legs, or simply to just prop up their feet to wash. The product I received came with a different type mount than the one shown, but it seemed to secure it even better to the wall which is always a plus.
purchased for a walk in closet wall--matches the cabinets in the closet. It is beautiful just perfect. My husband now has a place to sit to put on his socks in the morning. when he is not using it he just folds away. It was first delivered damaged but I emailed the seller and I had a replacement immediately--no questions whatsoever. I would purchase from these seller again. Thanks! !
Answer: The distance is 9 1/4 inches across from the center of the top two pipes.I went into the wall and added stubs to make sure it would hold any one sitting on seat.