FULL BEAD SOLID STRUCTURE - The swivel plate bar stools made with high quality stainless solid steel ball-bearing construction with black coating finished. 2mm thickened solid steel, much thicker than regular swivel plate.The turntable can bear load capacity about 132-176 lbs.360 FREE ROTATION - 360 degree rotation on pre-lubricated ball-bearings full round track, this bar stool swivel plate with 40-50pcs ball bearings swivel much easy and smooth with low noise. Not easy to deform or crush, have long service life with smooth rotation and low noise.MULTIPURPOSE - This swivel plate are perfect fit for many stools, such as swivel chairs, bar stools, bar chair, boat seat, kayak seat, murphy bed, swivel stand, sofa, rotating brackets, display cabinets, display stand, TV stand, wooden turntable, station assembly line rotation, gift box etc.MEASUREMENT - 6.25" X 1" size dimension, 2.5mm thickness. Mounting hole distance:4.9" (Minmum 120x120mm; Maximum 130x130mm)). Hole Size: 7x21mm; (Mounting hardware not included). Load capacity:The front and back are integrally fastened with each other, which has good bearing performance, can load 60-80kg.Customer Services - Please feel free reach out to us if there is any question with our product, we will provide after-sale services for all our products.