Keep rubbing till you've taken off the entire dry or calloused skin in the region. When you are concluded, rinse from the pumice stone and use some moisturizer to the skin. For tips on caring to get a pumice stone so it lasts for a longer time, scroll down! ① https://edenproductsltd.co.uk/2025/04/17/the-history-of-pumice-stone-from-ancient-civilisations-to-modern-day-uses/