*LOCAL DELIVERY OR COLLECTION ONLY Chudleys Working Crunch is ideal for adult working dogs with a very active workload. The diet has been formulated with an increased proportion of energy from fat and protein to help meet the needs of the working dog in terms of energy, stamina and recovery; it is also suitable for lactating bitches. Working Crunch contains our unique natural blend to enhance your dog's antioxidant status, plus a nutrient package to promote a glossy coat.