Description: Material: Crafted from iron material, this swivel chair base is strong and sturdy, can be used for a long time Product Dimensions: The chair base measures 15.5cm between screw holes, with an upper circle diameter of 30cm, a lower circle diameter of 32cm, and a height of 13cm, suitable for a wide range of office chairs Reliable and Sturdy: Designed for long-last use, this meeting room chair base boasts high wear resistance, making it a dependable choice for various settings Easy Installation: Easy and convenient to install and use, chair base can be a good replacement for your old or broken chair accessories Applicable: Suitable for office chairs, gaming chairs, barber stores, swivel chairs, etc Specification: Material: PP Size Chart: 30cmx32cmx13cm/11.81inchx12.60inchx5.12inch Package Includes: 1 Piece Swivel Chair Base Note: Please allow slightly errors due to manual measurement and different monitors. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.