Pentel Arts Oil Pastel Set of 50 are brilliant fade-resistant colours. Creamy softness makes pastels easy to lay down & produce varying textures. Slow drying time means you can work on a piece for several weeks. Ideal for most paper types (including pastel, water colour, cartridge, craft, etc.) as well as canvas, oil & acrylic boards. Great for use in conjunction with watercolours, oil paints & soft pastels.