Material: Steel<br />Specifications｣ｺ89mmX51mm     <br />Precision: 1INCH=25.4MM   <br />Fraction/Decimal/ Metric conversion chart on back<br />Quality: Made of  durable Stainless Steel ｣ｬConvenient ｣ｬ compact credit-card sized rule.<br />Package included｣ｺ 1X Guitar Measuring Ruler