Dear customer,Welcome to our store.The quality of our products is guaranteed and the price is favorable, please rest assured to buy!Regarding product information, it is recommended that you check the product details first. If you have any questions, please consult our customer service. 【Product Details】：Multifunction Plastic Ruler 30 cm Standard, Metric Rulers Straight Ruler Measuring Tool for Student School Office, 0-180° Round Angle Finder Craftsman Ruler Machinist Tool Features: Multi-function plastic ruler: made of good quality plastic, durable and sturdy; Multi-function ruler can replace ruler and angle ruler. Compasses Multiple uses：Can draw straight lines, horizontal parallel lines, vertical parallel lines, circular lines White color rulers: White color allows for a clear view of numbers and letters on the page; With the clear mathematics ruler, you can measure the object easily Wide application: a useful measuring tool for artists, designers, architects, engineers, students and so on; Suitable for classroom, school, office, home, etc. Specifications: Material: ABS Package included: 1 x Multifunction Straight Ruler Notes: 1. Manual measuring, please allow 1 ~ 3mm error,thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture. Household Tools Measuring Tools I wish you a happy life and a happy shopping!