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

Input:
Question: Are they compatible with the intuos3?
Document: Clearly this hasn't happened to everyone, but the first nib I tried damaged the inner workings of my wacom pro pen (from the Cintiq Companion). Spoke with Wacom, no one could tell me for sure if it's even supposed to be compatible.
Works perfect with my wacom stylus and very affordable. This has a pencil like feel to it that I love over the other styles.
WAC ACK20003 Hard Felt Nibs For Art Pen - 5 Pack &#8212;I  LOVE THESE NIBS! Glad I can purchase these guys individually.
Used these to replace the ones I lost that came with my Bamboo tablet. I love the feel of these (very smooth and don't scratch along the surface of the tablet) especially considering the price for 5 of them. They're so much cheaper than the brand-site!
Though these are nice, I recommend the Stroke nibs because of the springy feel they have to them. They also last a lot longer than the felt nibs.
These were bought because my Intuos 4 surface has become slick from use. The plastic nibs that came with the tablet are all slippery to control my strokes.The Felt nibs do help, but not as much as I had hoped.
These nibs make using a Wacom stylus feel more like writing on paper. They're as much of a solution as you can get if you dislike the plastic-on-glass (or plastic-on-plastic) sensation of writing with the stock nib. They also minimize the clacking sound that hard nibs make on the screen. The wear problem mentioned in other reviews may bother artists but I use the Wacom pen for taking notes and for me these six nibs will last a long time.
These don't last very long. I use a Wacom tablet for 4-6 hours per day, and these nibs last a few days at most. They're OK before they wear out, but I'm going to stick with the plastic ones from now on.
The felt tips give a more textured feel when drawing on a Cintiq, but wear down really fast. I ordered a pack of these replacements since they were sold on Amazon for a decent price. I was going to give these to my husband as a small Father's Day gift, since he's been trying to steal these from me (we're both artists). I ordered on June 11th with Prime shipping; it's the 21st and they apparently still have not been shipped according to the tracking information.
My digital artists asked me to purchase these nibs specifically. They are extremely pleased with them and asked that these become the standard replacements nibs for their department.
Answer: Yes, but I still don't recommend them, as they wear out too fast.