Dermaplaner refill packs contain 10 single-edge steel blades and 10 steel blade-guards. It is best practice to use a clean tool for dermaplaning at home. For best results, using a clean sharp blade each time, we suggest refilling your dermaplaner once a month or every 3 uses—whichever comes first. Always refill both the blade and blade-guard at the same time. Please note - the dermaplaner must be used with a blade-guard at all times. What's included: • leaf single-edge blades (10x) • leaf blade-guards (10x)