Drawing Compass Set With Lead Core And Eraser Maths Protractor Set Metal Maths Geometry Set Stainless Steel Scribing Tools For Architects, Engineers: Features: The Maths Compass has easy-to-grip top controls, makes it easy to change the size of the circle, and locks into position to give you circle you want. You can draw the perfect circle with the accurate Math Compass. MATERIAL DURABILITY: The compass is made of stainless steel; the protractor is made of safe plastic with a transparent design, easy to measure and read. The compass is approximately 12cm (4.72 inches) long. Protractor measures 0 to 180 degrees from left to right and right to left. The tool for plotting circles. The Drawing Compass Specialised Maths Kit is the circle drawing tool for students, artists, mathematicians, carpenters. Great for use in school, woodworking or at home. Product Description: Pack contains: 1* metal compass, 1* box of lead cores, 1* eraser, 1* transparent box. School Supplies:Simple Circular Gauge Set with Pencil Refill and Eraser White Practicality:Stationery is mainly designed to facilitate people's learning, writing and recording, so practicality is its most basic characteristic Aesthetics:With the continuous improvement of people's concept of aesthetics, the aesthetics of stationery is also increasingly important, modern stationery to meet the practicality, but also pay attention to the appearance of the design and color collocation, in order to attract consumers Easy to Carry:Stationeries are usually lightweight and easy to carry, and can be used in different occasions, such as schools, offices, etc Diversity:The types of stationery is very rich, including pens, paper, notebooks, sticky notes, folders, etc., each kind of stationery has its own special purpose and characteristics, in different occasions can play different roles