A 45 mm, premium steel, rotary blade makes cutting smooth and easy, while a unique rail design prevents build-up while you work. The ruler features a bold 6 in. x 24 in. grid that is printed on both sides for right- or left-handed use, plus highlighted numbers for excellent visibility on light or dark fabric. The magnetic blade carriage makes it easy to remove dull blades, while a carrying handle offers convenient transportation. Color: Clear. Gender: unisex.