A man does an instructional video while using a roller to roll on his hamstrings.
A man sits on the floor and uses a roller on his hamstrings
a man puts an item under his leg and starts to massage his leg
A man uses a rod to massage underneath his leg while sitting.
A man takes a roller and rolls it up and down his hamstring.
A man is rubbing some kind of cylindrical device on his left hamstring.
A person is using a tool to relieve the bottom of his thighs also known as his hamstrings.
A man is talking about and using a massage tool on his hamstrings.
A man sits on a carpeted living room floor using a pole that he rubs on the bottom of his thigh.
A man demonstrates massaging his hamstrings with a special massage tool.