A man is holding a sledge hammer and swinging it behind and in front of him.
A person is demonstrating how to do ninja moves with a mallet.
a person is showing some exercising movement with an object that looks like a hammer with long handle.
A man has a sledgehammer in his hands and is maneuvering it behind his body, and then lowers it to the floor.
a person in a gym standing on a mat with a mallet
A man is demonstrating  how to do exercises using a sledge hammer.
A man is showing how he is using a sledge hammer to do exercises.
A man stands in a school gym with a hammer, swinging it around.
A man is demonstrating how to work out with a sledge hammer.
A man standing holds a hammer while explaining various exercise moves