The Vintage Sheaffer Fineline Thin Leads in red are a collectible item for pen enthusiasts. These high-quality leads come in a plastic case with 25 packs, with 12 leads in each pack. Made by the renowned brand Sheaffer, these leads are perfect for those who appreciate vintage writing instruments. The thinness of the leads ensures smooth and precise writing, making them a valuable addition to any collection of mechanical pencils.