1.AUTO-FEED FEATUREDUTY HELICAL STEEL BLADES Designed with a specific auto-feed feature for simplicity, efficiency, security, and reliability. This pencil sharpener features a heavy-duty helical steel blade that can sharpen up to 6000 times. The rotary blade is made of a durable alloy structure. 2.SMALL VOLUME Operates quietly and is suitable for 6-8mm wooden and colored pencils. It has a compact size, making it easy to fit in any corner of your backpack. Dimensions: 3.5in - 1.7in - 2.9in (including the handle). 3.LOW NOISE AND EASY TO USE This smooth manual operation pencil sharpener is quiet and classroom-friendly. It is suitable for 6-8mm wooden and colored pencils, making it easy for school kids to use. An excellent gift for children and students. 4.UNIQUE DESIGN The sharpener mechanism automatically pulls the pencil into the cutting chamber, creating a perfect point. Once sharpened, the unique design prevents the pencil from being over-sharpened. 5.LARGE-CAPACITY STORAGE BOX The large-capacity storage box allows for prolonged use without staining surrounding areas. Made from strong, durable, colorfast, and recyclable ABS plastic parts.