Precision-engineered for consistent tension and long-lasting performance, these HEGREN springs are designed to perfectly complement your HEGREN reformer. Available in a range of resistance levels, they support every exercise from gentle rehabilitation to advanced strength work. Key Features: Options: Green (heavy) Red (medium) Blue (light) Yellow (very light) Compatibility: All HEGREN Pilates Reformers Colour-coded for easy resistance identification Smooth, controlled recoil for safe, effective workouts Built to withstand heavy studio use Technical Specifications: Width: 490mm