Primarily targets and trains the abdominal muscles and core, including the back, shoulders, arms, chest, and triceps. 

Can be used for a more comprehensive workout, as it engages multiple muscle groups beyond just the core. 

Consistent use can enhance the body’s overall mobility and flexibility, particularly in the spine and shoulders. 

Some models are designed to function as both an ab roller and a plank board, offering versatile exercise options. 

Features a self-rebounding mechanism that assists users during the exercise, providing support and helping to protect muscles from strain, especially beneficial for beginners. 

Incorporates wider front and back wheels for enhanced stability and control during rolling movements. 

Equipped with elbow support, often made of soft sponge, to reduce arm strain and provide comfort during workouts.