Mechanical pencil applied at an angle. When excess vertical pressure is applied on the lead, the lead is automatically retracted inwards. Higher-end mechanical pencils often feature a lead hardness grade indicator and sometimes feature a retractable lead guide pipe. This allows the lead guide pipe to retract back into the pencil body, which will keep it protected in storage and during transit and makes it 'pocket-safe'. In spite of the name, pencil leads do not contain the toxic chemical element lead, but are typically made with graphite and clay, or plastic polymers. Compared to standard pencils, mechanical pencils have a smaller range
2–0 lead is the worst lead 2–0 lead is the worst lead "2–0 lead is the worst lead" is a cliché used in sporting contests, to describe the situation in which one team is leading by a score of 2–0. The phrase is most common in association football, where it is sometimes applied only to the scoreline at half-time. It is sometimes also encountered in other sports where 2-0 is a moderately large lead, such as ice hockey. The underlying concept is that, a team which is leading 2-0 will be complacent and have a 'false sense of security' in their lead. If the trailing team