Omnigrid Cutting Mats are extremely durable and will provide you with years of successful cutting. 24"x 36" Green/Grey With Grid- 1" grid with 30°, 45° and 60° cutting angles. The perfect mat for: classrooms, beginners, quilting, crafts, memory books, and more. 1/8a�� markings that extend beyond the outer edge for easy viewing. Left and right hand numbering and angle systems. Keep out of sunlight and store flat, do not roll up.