The Ferplast Nikita P Harness, in red, is an essential accessory for safe and comfortable walks with your dog. This harness is available in two distinct sizes to ensure the perfect fit: one version with a neck circumference (A) of 19-26 cm and a chest circumference (B) of 28-40 cm, with a 10 mm wide strap; and another version with a neck circumference (A) of 24-31 cm and a chest circumference (B) of 30-41 cm, with a 15 mm wide strap.