Pencil Drawing

• Pop a Point Pencils
Pioneered by Taiwanese stationery manufacturer Bensia Pioneer Industrial Corporation in the early 70's, the product is also known as Bensia Pencils, non-sharpening pencils, is a type of pencil where many sharp points are housed in the body of the pencil in cartridge style plastic holders, removing a blunt point by pulling it from the writing end of the body and re-inserting it to the top of the body causes the next point to appear from the writing end of the pencil body.
• Plastic pencils
Invented by Arthur D. Little for Empire Pencil Company in the early 1970s; commercialised by Empire as the "EPCON" Pencil. These pencils were co-extruded, extruding a plasticised graphite mix within a wood-composite core.