LINKYO Electric Pencil Sharpener with Automatic Smart Sensor for Kids and Home Use, Gray Heavy duty electric pencil sharpener designed for classroom, office and high volume use Automatic smart sharpening sensor ensures the cutter stop when pencil is sharp Helical steel cutter produces safe and perfect rounded point Auto Jam release design Extra large reservoir holds up to 100 shavings <span class="a-text-bold">Helical rotating drill design</span> - Eliminates uneven, lopsided sharpening. Don&#039;t you just hate it when the pencil&#039;s tip is not sharpened evenly? Well, never again with LINKYO. <span class="a-text-bold">Heavy Duty Steel</span> - Optimal life time sharpening up to 3000 times <span class="a-text-bold">Electrically powered</span> - AC 100-250v, 50/60Hz <span class="a-text-bold">Table Mount</span> Vertical space saving design fits comfortably on any size desk <span class="a-text-bold">Large transparent Shavings Reservoir</span> - Allows you to see when the shavings need to be emptied <span class="a-text-bold">Auto Jam-Release Patented Gear Design</span> - If a jam occurs, simply push the pencil down to release <span class="a-text-bold">Smart Sharpening Sensor</span> - Sharpener sensing technology powers down when pencil reaches the perfect sharpness <span class="a-text-bold">Safety Guard Technology</span> - Automatically shuts down if the lid is removed <span class="a-text-bold">Anti-slip Silicon Base</span> - Keeps the sharpener in place during use