10 Piece Geometry Kit Set Includes 2 Metal drawing Compasses, 2 Triple-cornered s (45 degree & 30 degree/60 degree), 6 inch Ruler, 180 degree Protractor, Pencil Sharpener, Eraser, Pencil Lead Refill.Avoid damage: The geometry compass are made of metal ,and comes in triple packs that include cartons, plastic boxes, and bags to against damage during shipping.Transparent Rulers: protractor for geometry are made of plastic material, translucent color allows for a clear of numbers and letters on the page; With the clear mathematics ruler, you can measure an object easilypractical Design:geometry compass set Ergonomically designed compass head is comfortable to hold, Universal Holder Compass work with any standard sized pencil or pen, Rulers, Triple-cornered s & Protractor feature a graduations for easy identification alongColour:blueMaterial:Plastic + MetalPackage Contents:10 * Geometry SetOnly the above package content, other 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.