Transparent material: Transparent material, easy to observe, pencil shavings are clearer, easy to clean, and observe at any time. Large capacity can hold more pencil shavings. Compact size: The compact design and suitable size make the pencil sharpener really save space. It is also very portable and is ideal for artists, students, professors, engineers, architects and fashion designers of most ages, making drawing, writing and coloring easier. With a sharp built-in blade, the automatic sharpener can produce professional fine tips. Suitable for all 6-8mm size pencils. Use with most 2B pencils. Automatic mode and manual mode: Our electronic pencil sharpener has two modes for you to choose. Automatic mode: Press the pencil to start work and automatic sharpening, enough to easily sharpen each pencil to a durable point in 3""-5"" seconds. Manual mode: Just put the pencil in the sharpener and rotate it. Battery power supply: 2 AA batteries (not included) do not support USB charging or AC adapter, manual switch, switch the mode you want, safer. There are lock and unlock on the top of the product. When unlocked, you can remove the blade and clean the pencil shavings. Supplied with replacement blade