Pica Dry Special Refill Leads, 8PK a convenient set of eight high-quality leads stored in a durable plastic box designed for easy access. This refill pack includes three blue, three green, and two white leads, all pre-sharpened for immediate use. These versatile leads are suitable for marking on most surfaces and are especially i for wet cutting of tiles and stone. They are chloride-, ensuring durability and safety during use. Each lead measures 2.8mm in diameter and 125mm in length. To maintain their quality, it is to protect the leads from temperatures exceeding 104 degrees Fahrenheit (40 degrees Celsius). The storage box features a two-piece wing lid that opens smoothly, making it simple to retrieve new leads whe needed. Model Number: 4040