Geometry Set Wood Maths Protractor Compass Large For Drawing Boards : INCLUDES: 1 90 triangular ruler, 1 45 triangular ruler, 1 protractor, 1 compass EASY TO USE: handle design, teaching ruler is easy to grasp LARGE NUMBERS: Clear large number measurement design easy to read, suitable for whiteboards, dry erase boards, dry erase boards, etc HIGH QUALITY: plastic, wear resistance will scratch your hands Large size for drawing geometry and math lessons fits class, school or WIDE APPLICATION: Mathematical geometry toolkits are essential tools for architects, engineers, artists, designers, teachers further - Inner mesh panties Material: wood sizes: 90 triangular rulers: 66 cm x 33 cm x 57 cm or 25.98 12.99 22.44 inch 45 triangle rulers: 56 cm x 40 cm or 22.05 15.75 inch Protractor: 50 cm or 19.69 inch Compass: 43 cm or 16.93 inch contains: 1 90 triangular ruler 1 45 triangular ruler 1 protractor 1