The resin automatic pencil lead refills are designed for those who demand high performance from their writing instruments. These leads are compatible with a wide range of mechanical pencils, making them a versatile choice for any user. Whether you're drafting detailed plans or sketching creative designs, these leads offer a smooth, uninterrupted flow of graphite for precise and accurate results. Features -Color:Black -Material:Resin -Size:9.00X0.07X0.07cm/3.54X0.03X0.03in -Smooth and clear: experience smooth and clear writing with our resin automatic pencil lead, great for detailed work and everyday use - : the breakresistant feature of our lead refills they are , providing you with reliable performance over time -Versatile use: compatible with most mechanical pencils, these lead refills are ideal for students, artists, and professionals alike -Safe material: made from safe and resin, our pencil leads are safe and reliable for all users -Easy replacement: the easytoinstall design allows for quick and easy replacement of old leads, keeping you productive Package list: 3 Boxes x automatic pencil refills/1000 leads