It is best to soak your feet in warm water for about 10 minutes before use. | Most comfortable handing - The non-slip handle is perfectly contoured to your hand. | Foot file kit which can be used according to the foot condition to meet your needs. | Stainless steel foot file large yet light weight design allows you to work with ease and gives quick amazing smoothness. | Foot file kit has the advantages of easy cleaning and wear resistance. Regular use for feet can restore the original smooth skin.