Size: 15x2,5x1cm. Age: +3 years. Material: Plastic (ABS/PP), PVC, Stainless Steel, Isostatic Pressure Graphite. The eternal pencils are made of isostatic pressure graphite, an extremely hard and resistant graphite that the tip only deposits a small amount on the paper each time, so it has a very long life. The pencil can be erased with an eraser, just like a normal pencil, but there is no need to sharpen it. Click on the top to release the tip.