Description Description Durable compass set: the bow of this compass is made of metal, sturdy and long lasting time than the ordinary plastic compass, the set screw in the center of the compass allows you to accurately set the size of the circle you need and hold it, convenient for you to useVersatile geometry school set: this school compass set will meet your various needs for drawing circle and measuring angle, durable metal compasses will not bend during use, and the compass head is comfortable to hold, this ruler set features accurate centimetre units to measure itemsGood gift: the geometry set is extremely accurate and precise making it wonderful for students of levels and ages, easy to carry and store, suitable in the classroom and home, also a practical gift for your kids and friendsWide application: this math geometry tool set is especial suitable for teachers, engineers, designers and artists, it is good tool set for math, geometry, art, drafting and drawing, etc.