Collar There are lots of different collars around, and it is important to choose the correct one for your dog. A puppy should have a very light one, with room for growth but an adult can have any sort, fitting well so that there is no chance that the dog will slip out of it. A metal 'check chain' must be put on the right way round, as it can 'lock' if not, causing great distress.
The collar must legally have the owner's name and address on it, and a contact telephone number is useful. Think about an 'identichip' that can be painlessly inserted under the skin by your vet. This provides unique indelible identification.
Lead
Again, there are lots of different types. A young puppy can have a light-weight nylon lead, but an adult dog should have one that will not break when pulled. There are extendable leads, which may be suitable for one small dog but are best avoided where more than one dog is being walked.
Food and water bowls These should be easy to clean, although they should always be washed separately and never with your own crockery. Stainless steel bowls, or heavy pottery ones with no chips, are fine. It is also important to throw out any uneaten food after your dog has finished eating and to make sure there is fresh water available at all times.