This refill is what is put in each and every "Cross" style pen I sell. Customers come back to me complaining that the "cross" refill they purchased at their office supply store does not write as well as these and the store has to special order these for the customer. Remember, quantity and price are for (2) each of the refills and include shipping by USPS standard mail. Be sure to specify blue or black, fine or medium when ordering. Contact me thru form below for other color options.