Here is an abdominal wheel made to take your workouts to the net level. The Tengma Multi-functional Abdominal Wheel comes with everything you need to do sit ups, ab rolls, and other core training moves. You will be able to use resistance bands to work more muscle groups.
This fitness trainer can be used for rowing, leg training, and a whole lot more. It has a compact footprint, measuring 21.65″ x 43.31″.