【2-in-1 Pet Brush】 This brush removes not only loose hair but also the undercoat. It also includes a second brush to groom your dog or cat after removing the hair. Do not use on single-coated breeds (Maltese, Yorkshire Terriers, Shih Tzus, etc.). Do not use on pets that do not shed easily. ★ Please read all of the other instructions (photo 2) before use.