Metal Mate"Metal MaterialBar Stool Base is made of high strength metal iron, durable, good stability and safetyDirect ReplaceRotation Chair Base Assembly is direct replacements for your damaged or old partUniversal FitmentBar Stool Chair Base Replacement with the round shape, simple and generous, fit for most of the bar stool chairProfessional AccessoriesReplacement Round Office Chair Base with stylish design and excellent craftsmanshipApplicationSwivel Bar Chair Base widely used for bar stools,counter stools,office swivel chairs, kitchen dining designers chairs Size Chart: Diameter 38.5cm/15.16inchDiameter 41cm/16.14inchDiameter 45cm/17.72inch Package Includes: 1 Bar Stool Chair Base Replacement rialBar Stool Base is made of high strength metal iron, durable, good stability and safetyDirect ReplaceRotation Chair Base Assembly is direct replacements for your damaged or old partUniversal FitmentBar Stool Chair Base Replacement with the round shape, simple and generous, fit for most of the bar stool chairProfessional AccessoriesReplacement Round Office Chair Base with stylish design and excellent craftsmanshipApplicationSwivel Bar Chair Base widely used for bar stools,counter stools,office swivel chairs, kitchen dining designers chairs Size Chart: Diameter 38.5cm/15.16inchDiameter 41cm/16.14inchDiameter 45cm/17.72inch Package Includes: 1 Bar Stool Chair Base Replacement Note: Please allow slightly errors due to manual measurement and different monitors.