Seated back muscle trainer

Product Technical Specifications: 1. Product design incorporates advanced international design concepts. 2. Rectangular tube: 50*100*2.5mm. 3. Main tube thickness: 3mm. 4. Comfortable and durable backrest cushion, made of recycled cotton. 5. Counterweight uses strong magnetic pins for enhanced safety during exercise. 6. High-grade, high-quality pulleys, 105mm diameter. 7. High-quality, ultra-durable steel wire rope, 5.8mm diameter, 7*19 strand steel wire construction, ensuring smooth and stable operation. 8. Guide rod: Hollow, stainless steel φ25*2.0mm, 304 stainless steel counterweight guide rod. 9. Handle material: Black; tear-resistant. 10. Usage: Comes with a full-color muscle training guide diagram; training areas and usage methods are clearly explained. 11. Process: Electrostatic powder coating, beautiful and durable. 12. Paint color: Black with silver accents/Black matte finish 13. Plastic parts color: Black 14. Counterweight material: A3 steel plate, counterweight plate: 80KG 15. Product dimensions: 1081*923*1558mm 16. Net weight: 180KG 17. Gross weight: 198KG Training muscles: External oblique, latissimus dorsi, erector spinae