The Multifunctional Portable Trainer Work your upper body with the dream 4 Wheels Ab Roller that can help increase your Abdominal strength targeting your lower and upper back, hips, chest, arms, buttocks, and legs. Adapt your workouts to your strength level by simply changing the direction you move in.The Multifunctional Portable Trainer Work your upper body with the dream 4 Wheels Ab Roller that can help increase your Abdominal strength targeting your lower and upper back, hips, chest, arms, buttocks, and legs. Adapt your workouts to your strength level by simply changing the direction you move in.The Multifunctional Portable Trainer Work your upper body with the dream 4 Wheels Ab Roller that can help increase your Abdominal strength targeting your lower and upper back, hips, chest, arms, buttocks, and legs. Adapt your workouts to your strength level by simply changing the direction you move in.The Multifunctional Portable Trainer Work your upper body with the dream 4 Wheels Ab Roller that can help increase your Abdominal strength targeting your lower and upper back, hips, chest, arms, buttocks, and legs. Adapt your workouts to your strength level by simply changing the direction you move in.