Kit includes: 2 Stainless steel handles, sterilizable and double-sided. Sterilize one handle while the other is being used 30 white grit refill pads. White grit will not contaminate gel or acrylic compounds to the same extent as dark coloured grit does Self-adhesive filing pads: 10 x medium grit (100), 10 x fine grit (180), and 10 x extra fine grit (240) Filing pads are easy to apply and remove Disposable and hygienic