1.AUTO-FEED FEATUREDUTY HELICAL STEEL BLADESpecifically designed Auto-feed feature, simply, efficiently, securely and reliably.Pencil Sharpener With a heavy duty helical steel blade, can sharpen up to 6000 times. The rotary blade has alloy structure, which is more durable.2.SMALL VOLUMEIt works quietly and suitable for 6-8mm wooden pencils and colored pencils.The volume is very small, you can put it in any corner of the backpack. 3.5in -1.7in-2.9in (including the handle).3.LOW NOISE AND EASY TO USESmooth manual operation pencil sharpener. Quiet and Classroom Friendly.It works quietly and suitable for 6-8mm wooden pencils and colored pencils. It is easy to use for school kids.An Excellent Gift For Kids And Students.4.UNIQUE DESIGNSharpener Mechanism automatically draws pencil into the cutting chamber, producing a pefect point. Once the pencil is sharp, the Sharpener unique design will not allow the pencil to over sharpen.5.LARGE-CAPACITY STORAGE BOXThe large-capacity storage box can be used for a long time without staining other places. ABS plastic parts are strong, durable, colorfast and recyclable.