Winsor & Newton Professional Water Colour Paint, 5ml tube, Alizarin Crimson by Best Art Supplies ★★★★★ $9.07 Buy Now amazon.comDescriptionThe finest water colour offering the widest choice of pigments & the highest possible permanence Series: 1 / Colour Code: 004 / Colour Index: PR 83 Permanence: B / Opacity: Transparent Includes a 0. 17oz / 5ml tube of Winsor & Newton Professional Water Colour Conforms to ASTM D4236User reviews ★☆☆☆☆ If you know the difference between Winsor Newton "Professional" and "Cotman" then you know one (Cotman) is cheap beginner grade an the other (Professional) is a much better quality that cost much more.Now if you can do simple math, you know that 8ml is much less than 14ml. So I ordered $14.00 WN Proffesional 14ml and got 8ml of WN Cotman.Classic Bait and Switch. ★★★★★ I started with WN Cotman student watercolor paints. Good, but I did not understand mixing problems, learned about paint and tried single pigment M. Graham paint on a reccomendation over more expensive WN Professional paint. I like them very much. Took a class based on WN pro paint and bout a set for the class. WN Pro paint is very nice, but I find I prefer my M. Graham paints. The colors are every bit as good or better, and they wet better. WN paints are dryer. Not a big deal, but not my style. Add the higher cost of WN, and I go back to M. Graham. ★☆☆☆☆ I expected a new tube of paint. The tube was clearly opened, creased from someone squeezing out paint, with paint smeared around the cap. View all reviews