Fruit up your pencil case or desk with the mustard tropical ruler allowing you to draw perfectly straight lines as well as measure correct angles when learning geometry plus it boasts a fancy foldable pineapple design for a dose of tropical paradise experience the ruler makes all office and school chores much more enjoyable and fun and offers angle measurement up to 180 degrees and whether your goal is to underline something or just impress the mustard tropical ruler wont disappoint