PRODUCT : WINSOR & NEWTON PROMARKER – BLACK TWIN PACK DESCRIPTION : A twin pack of essential Winsor & Newton ProMarker colours. Alcohol-based translucent ink. Twin-tipped, with a broad chisel nib and fine bullet nib. High quality nibs for consistent, streak-free coverage. Skillfully versatile: it can be used on ink-resistant surfaces like acetate, glass, plastic and wood. Set includes 2 x ProMarker Black pens