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
Lead-in throughout the publication. Lead-in A lead-in is a short phrase, usually five words or less, that starts off a photo caption in a newspaper, high school yearbook, magazine or other publication. Lead-ins (a.k.a. "kickers") are used to catch the reader's attention and "lead in" to the main caption. These phrases widely range from common phrases to song lyrics, and are written appropriate to the subject matter of the photograph. Examples of lead-ins include the following: Editors and caption writers tend to "avoid" using clichés and obvious lead-ins (e.g., "Two heads better than one," "Whistle while you work," etc.); and also