Replaceable refills, save you the trouble of repurchasing a new pencil, and you can share them with family and friends. These pencil nibs are made with graphite material and are for long-lasting use. They are simple in design, but very practical to use and will give you a good experience. Features -Color:Multi -Material:Graphite, Alloy -Size:2.00X0.50X0.50cm/0.79X0.20X0.20in -Note:Different details of tread caused by batches. -These replaceable pencils nibs are easy to use and convenient to carry, and you can take them to any place. -Replaceable refills, does not need to be sharpened, which helps you reduce the time of sharpening. -The replacement can be replaced in time when the unlimited pen does not flow smoothly or the is damaged. -The replacement kit is a good accessory for study and office, giving you a good experience. -Sufficient quantity can meet your various replacement demands, and you can share them with your . Package list: 30 Tips