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

Input:
Question: Where can I buy an extra set of J Hooks for this rack?
Document: The power rack is pretty solid, I've dropped over 400 pounds on it without so much of a flinch. My only wishes were that it had two pull up bars and was small enough for a 6 foot standard bar. Had to buy a new bar with this set up, but it was worth it in the long run.
If you are concerned about the quality of this rack due to the low price, stop stressing and just buy it. You won't be disappointed.
I am so glad I bought this. They should put the words "ANNIHILATION STATION" on it! Do yourself a favor and just buy it. You know you want it. You will get huge doing heavier sets all day long. BUY IT NOW!! !
I'll also go ahead and say that the wobble may or may not be from the way I put it together, or possibly an uneven space on my garage floor. Other than that, the construction is very sturdy. One tip, you might want to have someone help you with the construction. It's not impossible to do alone but the extra hand helped out a lot.I did my first workout on the rack and I'm very pleased with the size and quality.
The safety rails are adjustable at an increment small enough to be useful for the bench press, which is a big improvement over my previous solution to this problem. And I've dropped a couple of hundred pounds quite a few times, so I've tested that aspect of the rack extensively.This isn't as sturdy as a rack that you would find in the gym, nor is it as easy to adjust the hooks. But given the price difference, I don't think either counts against the five star rating.
Came as advertised and has fulfilled all of my expectations. Assembly was easy and I am able to perform many different exercises using this rack.
The rear base on mine has 2 vertical Olympic size plate holders. Probably for weighing it down for support.I am very impressed. If you want a power rack for your basement... This is it.
For the price you pay for this rack it is a great deal. Its not the best out there but it is very sturdy and works perfect for me. I have low ceilings in the basement which is why this rack works so well. I am 6 foot tall and it is just the right height for doing squats on the highest notch.
I've read a few reviews where people say that this rack is hard to assemble or unstable. Personally, it took me less than an hour to assemble and it is plenty stable. I do suggest placing a carpet under it, especially if you have uneven floors.I am very happy with this purchase.
I have built a nice basement gym but of course I'm somewhat limited for space. This power rack fits perfectly and allows me to lift much safer when I don't have a spotter available. Sturdy construction and easy to put together.
Answer: yes