Standard tension only, sold individually. Length: 18.75" For use on the following Peak Pilates® Metal Line: MVe® Reformer Tower Conversion Peak PilatesSystem® Deluxe (PPS) 1-year warranty We recommend that you replace each spring every two years. Any spring that exhibits early signs of fatigue (for example, separation in coils, even if slight) should be replaced immediately. Refer to your equipment owner's manual. Clips are sold separately SKU: 4810-830-801 Peak Pilates® Metal Line Springs — text table Peak Pilates® Metal Line Springs Equipment MVe® Chair SpringItem # 4710-P05-0654 Metal Line Reformer Spring, Light: BlueItem # 4810-805-026-4 Standard Medium Spring: YellowItem # 4810-805-026-5 Heavy Spring: RedItem # 4810-805-026-6 Metal Line Tower Leg SpringItem # 4810-830-003 Metal Line Tower Arm SpringItem # 4810-830-801 Metal Line Push-Through SpringItem # 4810-805-026-2A MVe® Fitness Chair 2 Not specified Not specified Not specified Not specified Not specified Not specified MVe® Fitness Chair with Split-Pedal 2 Not specified Not specified Not specified Not specified Not specified Not specified MVe® Reformer Not specified 2 2 1 Not specified Not specified Not specified MVe® Tower Not specified Not specified Not specified Not specified 2 2 1 PPS Deluxe Reformer Not specified 2 2 1 2 2 1 fit™ reformer Not specified 2 2 1 Not specified Not specified Not specified These springs are included with the purchase of your apparatus. “Not specified” indicates a blank cell in the original chart.