Zinc Alloy Blade HolderSharper and more wear-resistant than ordinary pencil sharpeners, and 10 times more durable than ordinary pencil sharpeners. 9-Speed AdjustableThe length and thickness can be precisely adjusted to meet personal needs and personal habits, making the pencil more comfortable to use. 0.6 Ultra FineThe smallest degree can reach 0.6mm,professional pencil sharpener, just for sketch art. Simple BlackThe appearance is very simple and fashionable.Our pencil sharpener quality and portability which can meet the basic sharpening needs of any student, teacher, artist or administrator. Large-Capacity StorageThe pen dust box has a large capacity, so you do not need to replace the dirt frequently.