2B pencils!

overtaken by mechanical pencils, 2B pencils are rare finds these days. much less a bright green one! still remember my primary school days where we have to use a 2B pencil to shade the OAS paper for MCQs during exams. and speaking of mcq exams, i was always an index number after the best friend those days and we used to cheat during listening exams with the OAS paper! haha!