About the product Clipp-Aid Sharpening Crystals For Standard Clipper Blades (Individual Sachet). For use with adjustable blades and blade sizes: 0000, 000, 0A. Clipp-Aid is a unique clipper and trimmer maintenance product for barbers and stylists. This all-in-one product allows barbers to clean and sharpen their metal blades like new in less than 2 minutes, right in the convenience of your barber shop or salon. What's cool about Clipp-Aid is that using it once every 2-3 weeks removes all the hair, dirt and grime that gets stuck between your blades. It keeps your clipper and trimmer blades sharp at all times. The sharper the blade, the crisper the cut! With regular use of Clipp-Aid you can use the same blade for many more months allowing barbers and stylists to keep more money in their pockets. You know when barbers/stylists have to change or sharpen their blades, those blades have been dull for a really long time!