Electric Pencil Sharpener with Heavy Duty Helical Blade, USB or Battery Powered Operated for No.2/Colored Pencils(6-8mm), Supplies for School Classroom/Office/Home, Perfect for Artist Students KidsFast Sharpen: The electric pencil sharpener with heavy duty blade that is made of high quality material, fast sharpening within 5 seconds and auto stop. The ultra durable stainless steel helical blade can sharpen over 3000 times without wearing out Safe: This heavy duty pencil sharpener has non slip mats on the base to prevent move when you using it. It will not excessively heat when sharpening pencils continuously. Meanwhile 8mm diameters shaving