Levenger 2 Ballpoint Refills, Medium, Black (APP911 BK M) Write out: Fine, 8.5 miles or 36,089 ft.; Medium, 6.2 miles or 32,808 ft.; Broad, just under 5 miles or 26,246 ft. (all +/- 30%) Tube is made of metal and the writing tip is stainless steel End plug is plastic in the same color as the ink Fits all Levenger True Writer ballpoint pens Equivalent to Schmidt P900