Description 1Clear Scale: Every centimeter has a round hole for drawing circles and ellipses, built in roller, clear scale, easy to slide, not easy to skew, easy to observe. 2Applicable People: There are various formulas on the roller for quick calculation in use, whether you are an artist, student, pattern maker or designer, this measuring tape is a good helper for your work or study. 3Scope of Application: Universal measuring tape, with the protractor to draw the required graphics, can also draw circular curves, horizontal parallel lines, vertical parallel lines, enough size drawing. 4Plastic Material: Roller ruler is made of clear plastic, light weight and easy to carry, it can help students develop their craft skills and imagination. 5Perfect Gift: The plastic ruler is an ideal gift for friends, family and artists, the practical tool can bring them a lot of convenience and further enhance their creativity. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please dont hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it