usage and attention:

wash hands and feet with warm water and gently polish calluses. remember to apply lotion or hand cream after grinding ~ then your feet will be tender ~
note: do not use it too frequently, otherwise the cocoon will be thicker due to grinding. generally, use it once a week for more than ten minutes each time.
after use, pay attention to cleaning rub foot board keep it dry and ventilated to prolong its service life.