Winsor & Newton 24 Colors Basic Collection Promarker Watercolor Marker Double TipsDUAL TIPS: All paint markers have a fine bullet nib for sharp detailed lines and a flexible brush tip for full coverage and multiple line widths UNBEATABLE COLOR: Highly pigmented water based color gives incredible tonal range and vibrancy INTERMIXABLE: All watercolor markers are intermixable with and provide the same high quality found in tubes and pans LIGHTFAST: All colors are resistant to fading for 100 years