Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: Does it come with two of these or just one?
Document: These cost me $21 each for a total of $42. It took me less then an hour to do my lights and I saved $133 PLUS these things will last for years. This is one of the best tool purchases I have ever made, I love these hooks. If you need something like this get these, but note they only come in single units so you need to order 2. Some people say you can use just one, I wouldn't trust it.
Due to the weather I have not been able to use this yet.One complaint I do have is why is this sold as a single item when two are needed.
This was a waste of money for me. I bought two and fastened them to my metal ladder only to find that it was very easily dislodged that no one would go up the ladder on my metal roof. Probably would work okay on a shigled roof.
In looking at one of the reviews for the ladder hook, it said these were sold as a pair. It is not, so you will need to order two. I really do not know why these are NOT sold as a pair, since it clearly says in the instructions to use two hooks.
If you have a metal roof and need to caulk chimney or paint a dormer, you need this. Easy to install and uninstall from a ladder, and the rolling wheel makes placing it and removing it simple. You should get two per ladder, but, hey, I just use one.
A freind of mine bought a set same price I liked them so I ordered thinking it was two did,t know they changed it to just one. He paid about same price for two.Why can't we leave seller feed back for Amazon when they sell a item or contact Amazon??????????????????????? ?
Serves it purpose. Dealing with it on the end of an extension ladder section up on the roof is problematic due to the additional weight that the unit presents. Instructions are to use two hooks for safety and that adds a further burden due to the weight. The wheel does assist in sliding the ladder and hook up the roof. Lighter weight construction of the hook and use on one unit would result in higher rating of this item.
The hook is solid enough to handle your weight with only one hook, just tried it. If you plan to use it often, get two. It works well on my fairly steep metal roof but think a shallow roof might feel less safe but if you have a shallow roof, won't need a ladder hook in the first place. Need something to protect your roof surface, especially a painted metal roof.
I have a very steep roof and there was really no way to get up there short of tethering on like a rock climber. Using this product was much easier and safer. Keep in mind you do need two of them and I used two safety lines, one for me and one for the ladder. Without the ladder hooks I am sure I would still be trying to figure out how to paint the upper portion of my house.
My only complaint is I wanted two on my ladder for added security and the description clearly says &#34;One Hook&#34; so I interpreted that as meaning the package came with one, wrong, I opened the first package and was surprised to see two in the box so now I have 4? Price is reasonable, guess I'll sell one on a local Craigs or something as I only need the two.
Answer: no