Design Details: The machine features a foldable steel frame with padded rollers for back support, a headrest, and ergonomic handles.Key Functionality: It allows for targeted abdominal crunches (as seen in the "front handle" inset) and lumbar stretching to relieve back pain (as seen in the "rear handle" inset).Features: Includes a 360-degree rotating seat on some models and adjustable heights to accommodate different users