Creative Grids Non-Slip Basic Range features large black & white numbers for easy reading. Black & white markings printed in 1in grid marked in 1/4in and 1/2in increments and dashed lines on 1/2in markings are visible on light & dark fabrics. Embedded grippers hold fabric when cutting. Also fetured on Creative Grids NEW DVD2 OUT ON 10th of August - Order your copy NOW Non-Slip Square Rulers - 4'' x 4'' & 6'' x 6'' Non-Slip Rectangles Rulers - 6'' x 12'', 4'' x 14'', 3'' x 18'' & 6'' x 24''