Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: What is the purpose of the three metal clips on the back?
Document: I was surprised by how heavy it was. Mounting system was easy and kept board still so you could pull the darts out. The board material allows you to use metal tipped or soft tipped darts. Holes heal after time.
Winmau is the best out there. The Winmau Diamond really doesn't cost much and will out last any casual shooters lifetime. The "Diamond" wire eliminated any bounce out from contact between the darts and the wires. The darts just push the wire out of the way and stick. A bristle board is the only way to go for real steel tip darts, and there really is no reason not to go with Winmau and at least the Diamond model. You will never pick darts up off the floor again.
Winmau boards have outlasted any other board we have tried at work, since we play multiple games a day. Like others have said: this design allows the dart to push the wire out of the way and stick. Agree - there really is no reason not to go with Winmau. We had the previous Winmau board before the diamond came out, and this board has much less bounce outs (especially near the bulls-eye). We have still had some bounce out, but only when the staples are hit.
We love this board. Very few bounce outs. Nice, bright colors. Wires make it easy to see dart placement. Overall, I have ZERO complaints about this board!
Very high quality dartboard for a reasonable price. It's a heavy well-built board so there's absolutely no motion. No surface memory.
This was my first purchase of a "Higher" quality dart board. It has been a few years since I've played and I wanted to get a nice board. I'm really impressed with this board for the cost and quality I don't think I could have made a better choice. I know there are more expensive boards out there but I honestly dont think I could tell the difference.
This is the first bristle board I bought ever. I actually ordered Winmau Diamond but the board I got was Diamond Plus. Later version of Diamond? I don't care.Very nice, cool board. I threw couple hundred of darts they has conversion points, only one bounce out.
This is a great, large dartboard. The instructions were easy to follow, and I got it set up in no time. The surface is great and the darts pull right out without making huge holes. My kids are loving it to play darts.
This dart board is very high quality and was very easy to set up. I was playing darts in less than 5 mins and have been enjoying the dart board for the last few weeks. I have not had 1 single dart bounce off of the board since I have been playing with it. There are more expensive dart boards out there, but I don't see how any of them could be higher quality than this one. Great Board
The board really seems to recover nicely, the holes disappear almost as soon as the dart is removed. I'm sure that I'll have this for years to come. I am well pleased with this board and recommend it highly to anyone looking for a reasonably priced, well made board. Well done Winmau.
Answer: no