These puppies are all F1b. They are fully vaccinated and have been on a regular worming program. They have been out and about and visited my grooming shop almost weekly. You can visit my youtube channel to see the history of each puppy! Everyone is really sweet and smart and out going. These beautiful puppies will make a very easy transition into their new family and will be ready to explore their new world with their family immediately upon arrival!! No worries on bonding with an older puppy, these guys are ready for their new human and have had a wonderful life here and will be ready for a new adventure!