Combonation pin brush and bristle brush
 
Pin brush side - long, flexible metal pins with rounded tips that are set into a rubber or plastic base. The pins are designed to penetrate deeply into the dog's coat without scratching or damaging their skin, and can help to remove loose hair, dirt, and tangles. The brush can be used on most types of dog hair, but is particularly useful for dogs with long or curly hair that is prone to tangling.
 
Bristle brush side - densely packed bristles made of natural or synthetic materials. The bristles are usually short and firm, and are designed to penetrate deep into the dog's fur to remove dirt, debris, and loose hair. The brush can be used on most types of dog hair, but is particularly effective on short-haired breeds.Bristle brushes are often used as the final step in a dog's grooming routine, after any tangles or mats have been removed with a different type of brush or comb. The brush can be used to distribute natural oils throughout the dog's coat, which can help to make the fur look shinier and healthier. Regular brushing with a bristle brush can also help to stimulate blood flow to the skin, which can promote a healthy coat and overall well-being for your furry friend.