Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: Is this rubber feet? Or hard plastic?
Document: Not rubber, it's hard plastic. Does not grip surface and abrasive on delicate surfaces. Would not recommend as a replacement.
So far these have been great. It seems that my factory Apple feet all decided to fall off within a week and I needed something quick. As others have stated these are a little harder plastic as opposed to Apple's &#34;rubber&#34; feet. They still have some resistance to sliding on slick surfaces though.
I wanted actual replacement feet, i.e. rubber. These are plastic. They do work but have less friction than the rubber. Also, I used rubber cement to install them since the default adhesive ring included was pretty useless. But now my computer has four feet.They're only little feet, they're very cheap, they fit well, and they aren't worth any further thought. So go ahead and order them.
Installed on my Macbook Pro Mid 2009 model A1278Doesn't quite sit flush in its spot, has a slight lip and as a consequence the adhesive wasn't strong enough to hold the foot onto the bottom. I ended up using model glue to get it to stay in place both where the foot makes contact with the bottom case and also on the inside where the foot comes through. The material itself doesn't seem to be OEM, the original feet have a slight rubber feel to them and these feet are plastic.
It's a bit pricey for just some rubber/plastic inserts but works well. Make sure you align the small stud with the hole so that when you stick it, it's flushed. Had to take off the bottom of my MBP just to be sure.
The product description says these are manufactured by Apple -- that needs to be changed. These are obviously not OEM pieces. The original feel like rubber. These feel like plastic with a rubberized surface. They slide too easily across surfaces, instead of creating mild traction, and they don't stay on. I put them on today and they've already come off three times in the last hour. Some other reviews say that you only need to follow the instructions -- but there were no instructions included.
This was a total waste of money because it didn't fit my 2009 Macbook Pro 13'. I've just accepted that I won't have the rubber feet on the bottom anymore.
lost one foot off my laptop, these feet fit no problem. You just have to use the sticky surface they provide and make sure to carefully clean your puter before sticking them on. Some reviewers have said that they thought the feet were made of a stiffer plastic than what came on the original mac, but they feel the same to me. Height appears the same, so what's to worry about.
If you've dragged your MacBook Air/Pro everywhere with you, chances are it might show signs of wear at this point. Particularly, loss or rubber feet (always catches you by surprise). In that's the case, your on the right page. The bottom feet fit as described, however, don't expect the sticker residue keep them in place. Simply get some fast-drying glue and attach them permanently.
The Apple store wanted ridiculous money for each of these rubber feet, priced individually. From Wegener via Amazon I was able to replace all four for less than the single one at the Genius Bar.As a seller Wegener can not be beat, follow up communication insured the product met every expectation. The bottom line is your computer can be serviced and you can do it... You just need the right part from the right seller, you came to the right place.
Answer: Hard plastic, the same thing that comes with new MacBook pros