The CARBON BLACK 9021 is a standing lower-body training machine designed to improve hip stability, glute activation, and overall lower-body strength while supporting a natural and controlled movement pattern. A fixed, extended curved handlebar helps users maintain upper-body stability and accommodates different heights and arm spans, while the self-adaptive range-of-motion system with a ratchet mechanism automatically adjusts the starting position for added convenience. Safety and usability are enhanced through features such as a resistance release lever for easy dismount, an entry step for secure access, extended leg pads for user comfort, and anti-slip foot platforms that ensure stability throughout the exercise.