Pica-Dry Refills 4020 Water soluble �MULTI-USE� Leads For almost all surfaces, no matter if dry or wet, glossy or rough, dusty or oily, bright or dark Wipe clean from glossy surfaces with a damp cloth Leads are already sharpened In a convenient and sturdy plastic box Protect red yellow from temperatures above 30�C Diameter: 2.8 mm, Length: 125 mm Set of 8 leads assorted: 4 graphite, 2 red, 2 yellow In the new robust refill box: Significantly higher stiffness against bending and twisting increases protection against lead breakage. Always top up refills from the back!