Pica BIG-Dry Three Color Refill Leads, 12PK include 12 leads stored in a convenient plastic box designed with a two-piece wing lid for easy access. This set contains four graphite, four white, and four red rectangular leads, each measuring 2 x 5mm in profile and 150mm in length. These versatile leads work effectively on a variety of surfaces, whether dry or wet, glossy or rough, dusty or oily. They can be easily wiped clean from glossy surfaces with a damp cloth and become invisible when painted over with dispersion paint, making them i for many marking applications. Model Number: 6045