US Art Supply 24" x 36" Green/Black Self Healing 5-Ply Cutting Mat

What is this?

A large cutting mat for my desk.

Why did I buy it?

I have a much smaller cutting mat, but when I needed to cut larger objects, such as boxes, it didn't 'cut' it. I looked into bigger mats and found this one that matches the depth of my desk (36"). My desk is now split into two areas, the computer area and the cutting area, and I'm always ready to take a blade to something.