Thank you for viewing! Kakato-chan Heros Sponge Double-sided (double pumice stone) This sponge-type pumice stone removes calloused heel skin, corns, and blisters with light brushing. The black sponge removes the scraped skin, does not clog, and maintains its effectiveness even when it shrinks. The white sponge is perfect for finishing. Quality indication: Black foam board (inorganic foam) White foam board (hard urethane) Kiribai Kagaku Please understand that this item is stored at home. ☺︎ #bohurin ⇧ ☆Follow-up discount & bundle purchase discount in progress☆ [Please see my profile ☺︎] * Immediate purchase is welcome ☺︎