STRONG DURABLE RULER - Made of high quality acrylic. These durable rulers are perfect for students and professionals. EASY TO READ MARKINGS - With graduations in inches and centimeters, never make an incorrect measurement again. With divisions down to 1/16th inches and 1 millimeter. PERFECT FOR ANYONE - This ruler is great for students and professionals alike. Equipped with a hanging hole for easy storage. THE PERFECT GIFT - Gift this standard ruler to the drafter in your life. Give them a practical, memorable gift that will further their creativity to the next level. About Pacific Arc - What makes you happy? What drives you? This is how our story begins. With you. Since 1979, Pacific Arc has been creating art and drafting products with the user in mind. As you have constantly innovated and ideated, Pacific Arc continues to be driven by the passion to bring you the best products and supply you with the tools to bring your ideas to life. It’s our mission to foster imagination and provide you with the best tools for the job. With an excellent product line and numerous happy customers, we continue to make this dream a reality, creating products that are not only high quality, but affordably priced.