Summary: I'm a digital artist, so I need these for my work, and they are fantastic. Just what I needed. This is my first time having to replace my pen nib, so I was really nervous. It worked perfectly and I was really glad that these came with a tool to remove the old nib, as I was worried about that.
Excerpt: I have an old bamboo mte450 and after i bought these I thought they were too small in diameter. After trying it in the pen, it fit fine. i had to use a pair of tweezers to get the old one out since I had been using it for about 5 years it was worn down almost to the pen.
Pros: Easy to install, Glides Smoothly, Long Lasting
Summary: Not sure how to review other than to say they are the proper replacements for the Wacom Grip pen. The same nibs you would get from Wacom, so I'm pleased. Bought them as an add-on item to get my order up to $35 to qualify for free shipping.