Features: brand new and high quality 1.PRACTICAL SET. This clear acrylic ruler comes with accurate scales, three types for you to choose. Simple and practical. 2.PORTABLE AND DURABLE. Made of premium acrylic material, durable, lightweight and reusable. 3.CLEAR AND ACCURATE SCALES. Translucent color allows for a clear view of numbers and letters on the page, preventing unnecessary eye strain. With the clear and accurate mathematics ruler, you can measure an object easily. 4.SPECIFICATION. 15cm clear ruler; 20cm clear ruler; 30cm clear ruler. 1cm in thickness. A good measuring tool, easy and convenient to use. 5.WIDE APPLICATION. A useful and practical measuring tool for artists, designers, architects, Engineers, students, teachers and so on. Compact and portable. for Ideal for classroom, school, office, home, etc. Specifications: Material: Acrylic Color: Transparent Type-A: 0-15cm Type-B: 0-30cm Type-C: 0-20cm Weight: Approx. 25g Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Piece Straight Ruler