This Pilot Pintor Paint Marker set is a multi-purpose D.I.Y paint marker perfect for all your decorations and customising. The ink is opaque which can be visible on smooth, rough and dark surfaces and is fast-drying. It is water and light resistent, suitable for industraila, business uses and DIY Projects. It is permanent on porous surfaces. Removable with water or rubbing alcohol on non-porous surfaces. The wallet of 6 is available in 4 different assorted colour packs and in 3 different nib sizes. This pack boasts a medium nib at 1.4mm. There is also limited singular stock colours available in this size.