Features: Premium Metal Constructparticlemail: Produced with excellent metal, this automatic pencil proposals durability and a smooth, professional look, ideal for both office and school use. Dimension Preferencesecond: Available in four different measurements, it caters to various writing and drawing demands, excellent for detailed sketches otherwise smooth writing. Precise Writing Mechanideology: Features a accuracy push mechanism for consistent guide progress, reducing guide breakage and enhancing writing efficiency. Ergonomic Grip Planumberebog: Developed with a ergonomic grip for comfort during prolonged use. Spill proof Functionall: Boasts a modern,adding a touch of sophistication to your office. Specifications: Substancemail: Metal Processecond: Accuracy processing, smooth face, wear immune and oxidation immune Parametersecond: Automatic pencil, 4 specifications is available, suitable for different painting demands Sizemail: Standard size, ergonomic plan, comfortable grip Selling characteristicsecond: A variety of colors is available to meet individualized demands Practicality: Twelve hundred professional painting, plan and drawing and daily writing, suitable for learners, artists and architects Package Includes: Packaging list information: - Metal automatic pencil × 4 (Specification: 1 piece of each 0.3/0.5/0.7/0.9mm) - Replace guide cartridge × 4 - Eraser × 3 note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order.