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

Input:
Question: my pull up bar is hanging on the door. is this easy to take it out and put it back?
Document: This is a phenominal product! If you have one of those door hanging pull up bars at home this is the best addition to it for a great upper body work out! Easy to assemble, easy to use and a great way to get in shape at home. I fully recommend it to anyone like me who tries to squeeze in their workout in any way they can!
While this product fits up to an Iron Gym pull up bar quite well, when any load is put to it, the product fails to provide rigidity. It was assembled properly, but its design makes me feel as though the armatures on which one does dips are about to snap off. I've reverted back to doing my dips on a couple of sturdy chairs. For reference, I weigh about 230 pounds; I would garner that anyone of even remotely similar weight will also encounter my problems.
Excellent product and design. Very well built and easy to put together. Hooked up to my pull-up bar of different make without any problems. Provides a very stable platform for dips and other exercises. Comes with a handy chart showing other exercises that the station can be used for. Much more than I could ask for the price. I highly recommend this product.
This dip station works in conjunction with an existing door-hanging pull-up station. Assembles easily and hangs from the crossbar of an existing pull-up bar. This has provided great workouts for arms, abs, chest, shoulders, and core. Using in conjunction with a pull-up bar provides for a great all-around indoor, at-home workout. Drawback: the foam padding on the arms of the dip station tend to twist when applying weight to do knee or leg raises.
Bought this to use with my Iron Gym Extreme Pull up bar. Easy assembly except for the two pieces of foam that need to be placed onto the bar (the part that would cushion your back if doing leg raises), they are definitely snug and will benefit from some dry lubricant for initial placement.This product is definitely sturdy. Foam is good to excellent quality, metal is excellent quality.
Overall, a decent product for the price.Pros:1. Good to excellent padding/foam.2. Sturdy and thick tubing3. Fairly easy assembly even without the benefit of decent instructions4. Dips, inverted body (reverse) rows, and leg raises a cinch with this product. Note the body rows can only be performed with your hands parallel to your body.5. Feel safe dipping at 188 lbs.6. Easy hanging to existing pull-up bar.Cons:1. No hardware included.
Excellent; works perfectly with my door frame pull up bar, just what I wanted. Highly recommend it. No problem at all with my body weight either.
Easy to put together, but very woobly when using. I have to focus on controlling the bars so I don't slip off.
Doesn't leave me with a secure feeling, almost as thought the equipment will pull the frame away from the door. It's constructed well and fit right on to the pull bar I have as it said it would.
I bought this door dip bar about a month ago and I have to say its pretty good. It's nice that it hooks right onto my pull up bar but the only thing I don't like about it is that it is wobbly. The arms that you push on to do your dips, they tend to wobble a little bit, but once you're in
Answer: yes