◇If it no longer opens and closes smoothly, please purchase a new case. ◇If the puff gets dirty, it will not stick well, so please keep it clean at all times. ◇If the puff gets dirty, please use the separately sold "Shiseido Sponge Cleaner N" or dilute a mild detergent in lukewarm water and gently press it to wash it. After rinsing thoroughly so that no detergent remains, drain the water and dry it well in the shade before using it. ◇Please note that it may break if it is dropped or subjected to other impacts.