Silhouette America CUT-MAT-24-3T Cameo Cutting Mat - 12x12 Inch Standard Grip White Cutting Mat for Silhouette Cameo 4, 3, 2, Portrait & Curio - Perfect for Vinyl, Paper, Cardstock & Fabric Crafts

Trust me! Having the longer mat is worth it! I have found that even though much of what I do is small stuff, the 12x24 gives me the flexibility to make a larger cut without having to worry about running off of the mat. I've made plenty of things without using the cutting mat, and have had a lot of issues ensuring depth and speed are correct so it doesn't tear itself apart. With the longer mat, I'm not concerned about any of that. The adhesive backing that extends the entire way down the 24 inches ensure that what I'm cutting doesn't shift or slide during cutting. You have to be honest with yourself. There is nothing worse than wasting 2 feet of perfectly good vinyl because you didn't get it lined up correct or your depth was too deep. Just spend the extra couple of dollars and get something that will last through all of your projects, not just a few of them.