I love these pens. I don't really know why anyone would buy this particular 48 pen set though. Using simple mathematics I calculated that 10 sets of 12 pens at $11.something would be around $111 for 120 pens. This is still less than the $115 for the 48 pens. Just to be clear 48 pens at $115 is a cruddy deal compared to the 120 pens at $111. I love these pens though.