Amazing Product! The proven design of the SELECTOOL, Master Sharpener, lets you quickly and safely put a razor sharp edge on any knife in seconds - helping you keep it that way for the rest of your life. Two individual guides align your knife for a perfect angle - perfecting one side and then the other. (This is very similar to using a sharpening stone, where you sharpen each side separately.) A secondary guide on the side polishes and hones the blade for superior smoothness. The SELECTOOL also sharpens tools, such as mower blades, axes, hatchets, sickles, scythes, and any tool needing a sharp edge. Sharpen unusual items, such as reel lawn mowers and guillotine paper cutters. (The exposed insert on the end sharpens all these items with the same ease and precision as any other tool or blade.) Scissors and shear are no problem for this tool. Never throw away a dull pair of scissors again! Use the SELECTOOL and all your scissors, shears, cutting tool, and even hedge trimmers come nice and sharp in just a few strokes. Want to impress your friends. Use the built-in Glass and Tile cutter and watch their eyes pop out as you quickly make straight, curved, and even ROUND glass cuts with this tool. Stained glass and even porcelain tile are no match for the SELECTOOL Master Sharpener. The SELECTOOL"s sharpening insert is adjustable in three different positions, giving *hundreds and hundreds* of sharpenings before replacing or refurbishing. This exceptional tool is made 100% in the United States, so you"ll support your own economy with this tool. It is also assembled by people with disabilities, so you"ll help those people out as well. The SELECTOOL is backed by a Lifetime Warranty, so you buy this excellent tool ONCE, (rather than every few years and throw it away.) Shipped quickly to your door, this tool will quickly be making your life much easier and more exciting.