Originally Posted by BarryB
Just thought, some erasers have two parts, pencil (soft rubber) and biro (a harder gritty rubber). Would the biro end cause much damage if used by mistake? Just asking in case people assume 'any' eraser will do.
The biro section will wear away the contacts so please don't use it, use the soft pencil eraser and then wipe of any rubber residue with a lint free cloth.