Magicfly Portable Pencil Sharpener (Metallic Plum) | Compact & Quiet Classroom Sharpener That Gets Straight to the Point! Is it possible to fall in love with a pencil sharpener? We think so! Experience the SharpTank and enjoy the simple pleasure of producing a perfectly sharpened pencil. The SharpTank is an attractive, portable pencil sharpener with a sturdy, metal body and sharp rotary tool good for up to 5000 uses. The compact, quiet, durable design makes this the ideal sharpener for classroom and office settings. The SharpTank's tension springs automatically draw the pencil into the cutting chamber, producing a perfect point. Once the pencil is sharp, the machine's unique design will not allow it to "over sharpen" a pencil. The cutting blade can be easily removed for cleaning or replacement.