Ginger- do yourself a favor and dont buy the cheap stuff!! #1 the white cutting mats r not self healing, i.e. piece of junk!
I love my mats from
www.Jerrysartarama.com they are 3x as thick as the ones from Joanns so that means they dont wear out as much. they offer black, green and white and are called creative mark. its an art store, but one of the best purchases I have made in a long time!
happy hunting!
katz