24pc Watercolour Pencil Tin Prismacolor is a great sized set of Prisma Watercolor Pencils; with so many different colours to choose from this set can create many different effects as either a pencil or as a watercolour. Prismacolor Watercolor 24 can be ordered from us here at Artworx Art Supplies or picked up in store at our Geelong location along side other popular watercolour products.