Madan Brushes:
These all look the same to me other than of course the color but here is what I found out.
Head measures 2.5" across 4.5" height & has 11 rows of 22mm (3cm) pins. Total Length of the brush is 9".
BLUE & GREEN are very soft. They have the softest cushion, best for sensitive skin. Best for Yorkshire Terriers w/silky hair.
BABY BLUE, ORANGE, & PINK are soft, great for both silky & cottony coats, ideal for everyday use. These are slightly firmer than the very soft. Best for w/silky or cottony hair.
RED & PURPLE are medium soft, good for thicker hair or long hair breeds & recommended for everyday grooming. Best for breeds like Biewers, Maltese & Yorkies w/cottony thicker hair, LH Chihuahua & Japanese Chin.
BLACK is standard soft for denser hair. Also great for long haired cats. Best for breeds like Havanese, Shih Tzu, Pekingese, Pomeranians, Poodles & any other breeds w/long growing curly or double coat. If your Malt or Yorkie (or any other single coated breed) tolerates brushing, this brush is also great for brushing out tangles, along w/the small & oblong brush.
BLACK w/RED cushion is firm, best for removing undercoat & heavier coarse hair. Best for breeds like Afghan Hound, Chow Chow, Old English Sheep Dog.