This two-sided, self-healing Fiskars medium cutting mat is an essential part of every crafting, sewing and quilting workspace, especially when working with a rotary cutter or craft knife. The cutting mat includes one side of easy-to-read measuring grids and 30-, 45- and 60-degree bias lines and one side of open surface for freehand projects. Details: 18" x 24" (45.7cm x 60.9cm) mat size Essential when creating fabric strips, quilting squares, vinyl decals, stencils and scrapbooking pages Self-healing, pliable surface prevents damage to sharp tools Long-lasting, two-sided mat maximizes usability Easy-to-read measuring grid and 30-, 45- and 60-degree bias lines on one side Reverse side is an open surface for freehand projects as well as workspace personalization and general protection Intended care icons advise to store flat and away from sunlight, heat and coldClean with warm water and mild soap CAUTION: Avoid cutting repeatedly in the same spot or with excessive pressure to avoid cut through.