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: What material are these knobs made of?
Document: These knobs are well made and look great on my dresser. They are a tad pricey but are well worth it. They are flat or satin black. Not shiny at all. I did a makeover on my dresser and painted it black. I then bought these knobs as my old ones were ugly white. They knobs come individually packaged with a metal screw to attach. They fit perfectly on my dresser because everything is metal so you can tighten them down very well so they will not wiggle or fall off.
High quality, well made and packaged. Made a huge difference in the appearance of our bathroom. Much less $ than Menards/Home Depot.
Again,, was surprised when I received these. They are well made as the ben cup drawer pulls that I purchased. Our cabinets we bought these for have a black trim in them, and these set the cupboards off very well.Highly recommend these also!
These knobs are small but have a good appearance and feel to them. They were easy to install as well.
These knobs are exactly as described and even nicer looking in person. They improved the entire look of my kitchen.
was happy that i ordered these knobs . Nice update to outdated furniture simply stunning and easily installed simply and quickly.
These knobs are so great and look wonderful on my cabinets. Pretty heavy in your hand which I like instead of being light and cheap feeling.
It's hard to tell from the picture, but the knobs are a sleek, matte metal hardware. Good quality in our opinion and you certainly can't beat them for $1 a piece.
These were QUALITY. The knobs were just what I was looking for. The  price was amazing. I could of not done any better. Even better looking than the picture. Delivery was spot on. Amazon is easy to work with.
These knobs look very good, and the cost was much less than other places we've looked at. When you have to purchase about thirty knobs, saving one or two dollars on each knob saves a great deal of money.
Answer: yes