This 1-1/2in square ruler is the perfect ruler for anyone who loves to work with little blocks. Easy to read black and white markings are printed in 1in grids marked in 1/8in and 1/4in increments. The 1/4in dashed lines that are printed on two adjoining sides, aid in trimming seam allowances. A 45 degree diagonal line makes trimming half-square triangle blocks easy and accurate. The ruler slides easily over the fabric until pressure is applied. Then our exclusive grip holds the fabric in place while cutting, eliminating slipping and miss-cuts. Total Size – 1-1/2in x 1-1/2in