Loved this for cutting small but thick pieces of leather. I bought these small ones to make sure I like this style of cutting mat before I commit to buying a bigger one. I've done several cutting projects now and have only used one side of one of the cutting mats. It still looks barely used. At my pace and work style, these might last me some years of small project usage. It doesn't heal as well with punches and awls. The punctures do not heal as well as slices.