The bench press uses your body weight to exercise your core, upper body and abdominal muscles, and uses gravity to help improve posture and flexibility. Therefore, whether you are a beginner or an advanced bodybuilder, the bench press can help you achieve your fitness goals. Material: high quality steel pipe, leather Stand alone size: 104X103X208CM/40.9X40.5X81.8in Bench press size: 115x33x45CM/45.2x12.9x17.7in Maximum load: 450kg/990lbs According to manual measurement, the difference is 1-3cm/0.39-1.18in. This product does not include barbells.