10pcs Geometry School Set as gift for homeschooling maths and for students to maths learning and drawing and easy to apply; Helpful tools for drawing circles; School Full Set, to use 2 Drawing Compasses of different type suit ; box of refill, protractor, set squares, eraser and so on Clear color allows you to see the words, letters, and figures on page through the protractor Convenient and organized to carry in transparent box. Colour: Gray Material: metal + plastic Package Contents: 1 set x office rulers (accessories as shown) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.