Abdominal muscle training equipment----abdominal muscle wheel
It is shaped like a medicine grinder.
A wheel in the middle can rotate freely, and there are two handles on the side.
When exercising, kneel on your knees, hold the handles with both hands, and place the abdominal muscle wheel in front of the body.
Roll forward, then use abdominal strength to return to the original position. It can also be done standing, but this is more difficult.
