MASTERY MART Office Chair Base Replacement, 28 Inch Heavy Duty 2500Lbs Metal Leg, Reinforced for Swivel Gaming Chair, Universal Caster and Gas Cylinder Size, Polished SteelWHAT'S IN THE BOX: 1 Set of Office Chair Silver Base Replacement, Installation Package, 1 Base Cap. PREMIUM GRADE METAL MADE STRONG BASE REPLACEMENT: This Heavy Duty Chrome Base Stool is manufactured to meet the Office Chair's highest industry standard. The reinforced metal and durability of the base will ensure your chair's base is firmly sound for many years. UNIVERSAL SIZE: The office chair base works perfectly with almost every office chair,