Two Pin Types The blue pet hair brush comes with fine bent pins with plastic protective dots on each pin tip to penetrate deep into the fur&clean easily the dirt buried inside without scratching your pet's skin The pink pet brush features dense & thick bristle that gently removes mats, tangle and loose undercoat. Not only can our brushes eliminate the dirt and detangle the fur, they can also massage your pet's body, increase blood circulation & thus bring a healthy, soft and shiny coat