Material: This Transparent Ruler with Clear Scale Is Made of High-Quality Plastic, It Is Strong And Durable, Not Easy to Deform or Damage, Has Reliable Quality, And Can Be Stored And Used for A Long Time Two Scale Design:Ruler Is Desgin with Centimeter Scale And inch Scale, It Can Meet Your Different Measurement Needs, Convenient And Practical Design: Clear Ruler with Black Printed Scales, It Will Not Block Your Sight When Measuring. You Can Clearly See The Measurement Numbers And Text on The Page, Which Is Convenient for Measurement. The Plastic Ruler Can Also Avoid Scratching Your Fingers, Which Is Very Safe And Practical Multi-Pack: Plastic Ruler Set includes 6 Pcs 30cm/12inch Rulers, The Quantity Is Enough to Meet Your Daily Measurement Needs Application: 30cm Ruler with inches Can Be Widely Used in School, Home, Library, Study Room, And So on, The Long Ruler Is Suitable for Students, Teachers, Artists, Architects And Workers. The 30cm Ruler Is Also A Good Choice As A Gift for School-Going Children, Manufacturer: REBECASKYENS8322