These brilliant Faber-Castell Colour-Grip Pencils are fully water-soluble. They feature an ergonomic triangular shape with patented Soft-Grip-Zone for a firm grip, meaning they are perfect for both right-handed and left-handed users. The wood has been untreated and is from FSC-certified stock. The surface coating and the textured dots are made from environmentally-friendly water-based paint making them more hygienic than unpainted wood.