4.0Overall:  

Other Thoughts: 

I've used Mars, Faber-Castell, Magic Rub, and Pink Perl erasers, and those on Pentel and Alvin GraphMatic mechanical pencils. The Perl shreds too much, and the Magic Rub doesn't stay soft after much usage, resulting in some smears; I liked the others. These erasers are more similar to the Alvin GraphMatic and Mars erasers than Pentel's own mechanical pencil erasers (for their graphing pencils), being soft and shredding somewhat slower. It's definitely cheaper than the Mars or any mechanical pencil eraser, so a good buy. (Though this 3-pack on the site isn't the cheapest they come.)

4.0Overall:  

Other Thoughts: 

Erasers arrived promptly and perfectly. However, there was no return slip or order confirmation inside the package, so if you change your mind about these erasers upon their arrival, returning them would be quite troublesome. <br/> <br/> <br/>Remember, these erasers are LARGE. These aren't the small ones you may have seen from Taiwan; these are 2.6in long and 1in wide. Don't be fooled my the product photo!

4.0Overall:  

Other Thoughts: 

This is an excellent item, no need to spend more on any other, more expensive product.

4.0Overall:  

Other Thoughts: 

These are probably the best erasers money can buy, but at more than $1 each, they still seem a little overpriced to me.

4.0Overall:  

Other Thoughts: 

No-nonsense eraser that works quickly and well to remove unwanted pencil marks. I use it for college, and as a math major, I use it frequently and it always gets the job done. If you need to erase frequently, buy this.