4.7 inch Class 4 Gas Lift Cylinder Replacement for O1,O2,O3 Office Chair

Feature Specification Safety Grade Class 4 (Highest Industry Standard) Material Reinforced Heavy-Duty Steel Stroke (Travel Distance) 120mm (Approx. 4.7 inches) Max Load Capacity 350 lbs (Dynamic) / 350 lbs (Rotation Test) Outer Diameter 50mm (Universal standard for most chair bases) Adjustable Length 250mm – 365mm (9.8" – 14.3") Certifications ANSI/BIFMA X5.1 Testing Milestones 120,000 Rotations / 100,000 Impact Cycles Net Weight 1.09 kg (Solid Build Quality)