8 Pcs Studying Set Ruler Drawing Compass Sharpener Drafting Compasses Boxed Set Black Color: 4 Colors Avaliable;Red,Light Blue,Black,Dark Blue; Material: Metal, Plastic. Package include: 1*Eraser, 1*Pencil Lead Refills,1*Mechanical Pencil, 1* Triangle Ruler,1*45-degree angle triangle, 1*Straight Ruler, 1*Protractor, 1*Compass Durable plastic and metal tools withstand use from year to year; The plastic case is for storage and easy carry. This geometry tools, is especially suitable for school,office,home use.