This is a set of flats, 45-105, cut for 4-in line, used. Also, 3 brand new Cobalt Flats, 45-85-105. No idea where the D went though. Individually, the new EBs are worth over $30 retail, as is, so this is a pretty decent deal if you ask me. You can have them all for $25 shipped or best offer. Paypal to the US.