Our three piece set features base, mat, and ironing pad. This 16 diameter cutting mat turntable base, and ironing top combination gives you an efficient, rotating, tabletop solution for many important quilting tasks, whether you are cutting, piecing, or pressing. Our Round About allows you to use the entire mat as a cutting surface, whether you're splitting squares into triangles or squaring up blocks before assembly. Cut right up to the extreme outside edge with no tipping or awkward pieces to get in the way. Thirty stainless steel ball bearings mean smooth operation, great durability, and very limited maintenance. Originally designed for quilters, this is a great tool for crafting and scrap booking as well.