48 versatile shades of premium colour pigment The Winsor & Newton Studio Collection colour pencils have a soft texture that blend easily. The pencils are wax based with a soft core. They are opaque and perfect for laying down coverage. These pencils are very rich in colour. Studio Collection colour pencils have a high lightfast rating based on ASTM testing, which means they will not fade with time. The cores are break resistant, they will not break easily, even when dropped. Product Details: Sof