Spinning Square Cutting Mat 17" X 17"This green rotating self healing professional quality rotary mat features a smooth 360 rotation eliminating the need to move your body or your project around. It's simple to use, just cut, rotate mat, and cut again! Non slip back for stable and safe cutting. Easily make 30, 45, 60 and 90 cuts. Especially designed for use with OLFA rotary cutters. Rotary mats protect your work area and greatly extend the life of your rotary blades.