This ruler is a must have for any stained glass studio! Made of durable calibrated aluminum, it measures 18 inches long by about 1-1/8" wide. One side measures in 1/8" increments, the other side in 1/16". Comes with adhesive backed cork/rubber strip (in case you'd prefer a ruler that is not backed). The strip is narrower than the ruler. When used with the skid free backing, it is skid resistant and won't scratch your glass. Great for pattern drawing. The logo on the ruler varies by shipment. They're all made by the same manufacturer.