Pica-Dry Water Jet Resistant Permanent Refill Leads. Unparalleled Performance: Permanent Water jet resistant, ensuring your marks withstand the test of time. Ideal for wet cutting of tiles and stone. Chloride-free composition guarantees safe and reliable marking without any harmful effects. Convenience at Its Best: Leads are pre-sharpened, saving you valuable time and effort. New sturdy refill box provides convenient storage and easy access to refills. Diameter: 2.8 mm, Length: 125 mm—perfect dimensions for precise and consistent markings. Experience Unmatched Protection with the New Refill Box: Our newly designed robust refill box offers significantly higher stiffness. Resistance against bending and twisting. Superior protection against lead breakage. Maximize Efficiency with Smart Refilling: Always remember to top up your refills from the back, guaranteeing a continuous supply of leads without any downtime. Use with corresponding pencil PICA Dry Longlife Automatic Pencil 3030. Recommended use on: Tiles & Ceramic Glass Plastic Metal Stone & Concrete Worked Timber and Laminate Suitable use: Leather Tire & Rubber Dry