100th Day of School Pencils. Just write for this special day, make every student's 100th Day of School even more special with these wooden pencils! These colorfully designed 7 1/2" pencils are just the thing to commemorate this occasion. With 24 pencils in every unit, you'll have plenty for your whole class. But don't stop there! These pencils are great to use with our 100th Day of School Pencil Toppers. (2 dozen per unit) Pencils have #2 lead.