Durable Pencil Sharpener: This manual desktop pencil sharpener is made of ABS material and its design is durable. Its alloy steel roller has a sharp blade for easy rolling and smooth pencil sharpening. Adjustable Pencil Sharpener for Kids: The pencil tip has 5 adjustable thicknesses, by turning the adjustment knob on the rear handle of the sharpener, you can sharpen pencils of different thicknesses, suitable for a variety of round, triangular, hexagonal pencils, to meet the needs of drawing and learning. Multifunctional Manual Pencil Sharpener: The design with automatic pencil feeding, directly inserted into the twist handle to sharpen, with automatic exclusion of broken core and automatic stop function to prevent excessive sharpening and waste of pencils, it is suitable for a variety of conventional pencils with a diameter of 6.9-8mm. Large Capacity Design: The manual pencil sharpener for adults has a large capacity chip collection box, eliminating the hassle with frequent dumping and saves time, making it perfect for use in school, home and office.