This is a set of four tools. They are Porter Cable 18V NiMh cordless tools - no batteries, no charger. Batteries and chargers are readily available for this set, I've just decided to go with plug in tools. My projects are usually pretty big and so the cordless option just doesn't do it for me. There is a circular saw, a sawsall, a die grinder, and a flashlight. All tools work if you add a battery and charger.