Features: brand new and high quality Whether you are an artist, student, pattern maker or designer, this ruler is a good helper for your work or study; it can help develop your own manual skills and imagination. Various shape can be drawn, the scale is clear, the sliding is convenient, the drawing is stable, it is not easy to be skewed, and it is easy to observe. Made of high-quality plastic. Lightweight, durable, and easy to carry. The transparent material allows you not to ignore some important numbers or words when drawing. It can be used to measure angles, draw plans, draw stereograms, parabolas, etc. Different styles meet the learning needs of students of different ages. Specifications: Material:Plastic Type: Primary School Pure Blue / High School Pure Blue / Primary School Red Transparent / Primary School Transparent / High School Transparent / Junior High School Pure Yellow(Optional) Size of Primary Edition Ruler:19x7.8cm/7.48x3.07inches Size of High School Edition Ruler:20.3x8.4cm/7.99x3.31inches Size of Junior High School Edition:20.3x8.4cm/7.99x3.31inches Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package includes: 1 x Multifunctional Geometric Ruler