Staedtler rasoplast

This is my everyday eraser, the STAEDTLER rasoplast eraser. It is available in 3 different sizes and as a multi-eraser - one side erases pen, other pencil. It erases quite well, but catches dirty marks upon erasing a soft pencil. Since i won't take bogus quality pictures with the web-camera and because my real camera is unreliable, I'll just have to say this is the best eraser I have ever used and cut the talk.
Pros-excellent erasing, variable sizes
Cons-dirty marks