Experience bold, lasting marks with these black chisel tip permanent markers, designed for professionals in construction, engineering, and industrial design. The waterproof ink ensures your writing, marking, sketching, or drawing stays sharp on paper, cardboard, and plastic surfaces, even in demanding environments. Each marker features a solid black color and a durable plastic and metal construction for reliable everyday use. The chisel tip allows for both fine and broad lines, making it easy to switch between detailed work and larger markings. This 4-pack set is ideal for offices, workshops, and creative studios, offering consistent performance and a comfortable grip for both left and right-handed users. With a compact package size of 20.8 cm x 7.2 cm x 3.5 cm and a lightweight design at just 0.059 kg, these markers are easy to store and transport. No batteries required, just uncap and start creating with confidence using these fine permanent markers.