Fiskars-self-healing cutting mat. this double-sided cutting mat gives you twice the cutting life. both sides have 1-inch grid lines with dotted lines at 1/4 inch increments. all four edges have rulers with 1/8 inch increments and there are also 30-45-and 60-degree angle lines the cutting grid area measures 12x18-inch and the overall size of the mat is 13x19-inch. this package contains one self-healing cutting mat. made of 100-percent polypropylene.