Easy Read Stainless Steel Ruler, Standard/Metric, 18"", Blue, Sold as 1 Each Stainless steel ruler with metric and standard markings. Easy to read with 1/4"", 1/8"" and 1/16"" labeled increments. Vivid white markings. English side is colorful while metric side is black, so you always know which side you are using. Vibrant colorful backgrounds.