Why Choose the Cuisipro Surface Glide Technology Graters? Competition There are an abundance of stamped and etched graters available in the market, but not all graters are created equal. Only Cuisipro"s graters take etched graters to the next level with a special Surface Glide Technology, exclusive to Cuisipro. In addition to razor sharp etched blades the Surface Glide Technology creates the perfect balance between ease of grating and maximum efficiency for the ultimate grating experience that etched graters alone cannot compete with. In addition to the exclusive Cuisipro Surface Glide Technology, the entire line of Cuisipro graters and shavers possess well-applied ergonomics. Features Grate More With Less Effort With Surface Glide Technology: The science behind Super Glide Technology is based in the repeated grooved pattern that is spread evenly across the face of the grating surface. The grooves provide 2 distinct benefits beyond other graters. First, the groove reduces resistance, making grating effortless. Secondly the groove elongates the length of each individual blade, so it has a larger cutting surface that comes in contact with food, therefore producing more gratings per stroke. Combined these features to create a perfect surface for outstanding uninterrupted grating performance where food glides through blades. Protective Cover Doubles As A Measuring Tool: The Rasps and Flat grater collection feature a snap on, clear protective cover with US and metric measurements. Not only does the cover provide safe storage, but is a container to catch grated ingredients for measuring. Very few graters offer protective covers and no other grater in the market provides a cover with the added benefit of measuring or catching the grated ingredient. Secure Grip For Safety: The entire line of graters feature ergonomic handles with non-slip finish designed to protect your hands while providing the best grip possible for safe grating. Similar rasps graters don"t have handles and other graters don"t have the same attention to non-slip grip and ergonomic handles. Non Slip End for Stability: The Rasps, Flat and Dual graters have non�slip ends and box grater a non-slip base that keep the graters in place and steady while resting on the cutting board. No chance of grater slipping or sliding around the surface. Majority of graters do not include non-slip ends � especially for rasps and dual graters. All Cuisipro products are backed by a 25 year warranty.