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: Is this a rubber or plastic wheel?
Document: i like this jack! it's sturdy and comes with all the hardware. it was simple to install and the wheel isn't a cheap plastic.keep it greased by the provided grease nipple and no worries!
Very dissapointed with this product. The tolerances associated with the swivel and lock mechanisms were terrible creating a wobbly jack that borders on dangerous. In addition when cranking the handle to raise or lower the height requires securing the wheel otherwise the wheel just spins without changing the height.
my tear drop trailer only weighs 750 pounds so this will work just fine. I can move the trailer by hand with this.
my boat came off the hitch and damaged the old jack this fit right where the old one did, and works even better
easy to install on my 5/8 trailer made it easy to move around and hook up ! thanks so much brad
You can push your trailer around without picking up the trailer and pushing it, Don't have to do that any more you can push it turn it, But the main thing is you don't have to pick it up, and since it's up in the air and when you back up you can see the stand and you can judge how far you are from your trailer and by the time you stop you will be so close the only thing you have to do is crank it down on the ball with very little adjustment.
Serves it's intended purpose. Decent quality for the price. I trailer my boat in salt water, so it remains to be seen how it holds up. My previous jack (another brand) lasted only two years. Easy to install.
It's a great investment if you have a trailer that lays on the ground.
It just seems like it is made from cheaper materials than it should have been. It is still working and has not broken on me yet....
I saw one of these units that my bother had purchased, and I thought initially this was a good deal..... until I saw that the shipping was more than the item price. Don't make the mistake of ordering before you see what shipping will cost. I rated it low because overall I think it is not a great deal for a low quality item especially when you get ripped off on shipping. That's an old Ebay scam trick.
Answer: yes