LUKZER Geometry Mathematical Drawing Instrument Box (8 Pcs Set) with Scale, Mechanical Pencil, Compass, Pencil leads,Protractor, Eraser etc for Students and School Supplies, Multi Color. Self Centering Compass is specially designed for ease & accuracy while drawing mathematical figures which also looks attractive. The Set Squares, ruler & protractor are made of high quality transparent plastic and comes with precise marking for accurate drawings. This box contains Compass, Mechanical Pencil, Eraser, Pencil Lead, Ruler, Set Squares & Protractor.