Pilot [Frixion Refill] 0.38mm For Multi-Color, Slim Sky Blue Pink Light Blue x2 Slim Transparent Body If you purchase only the set of 4 Frixion refills, it's 754 yen. 2 refills are 505 yen, 2 items (refill and body) are 578 yen, and purchasing only the transparent body is 387 yen. I cannot offer a discount, but if it seems possible to combine shipping with other items, the total price might be slightly cheaper, so please comment. Thank you.