Product name: Barbell plateStyle: 2.5kg/5.5lbs*2, 5kg/11lbs*2, 10kg/22lbs*2, 15kg/33lbs*2, 20kg/44lbs*2Dimensions (diameter x thickness):2.5kg/5.5lbs: 22*3.5cm/8.6*1.3in5kg/11lbs: 26*4cm/10.2*1.5in10kg/22lbs: 31*5cm/12.2*1.9in15kg/33lbs: 35.5*5.2cm/13.9*2in20kg/44lbs: 39.5*5.5cm/15.5*2.1inAperture: 5 cm/2 inchesQuantity: 2Material: cast ironPurpose: fitness equipmentFunction: muscle trainingApplicable people: all peopleWelcome to our shop, we are ready to provide you with quality products at any time.notes:1. All our products are taken in kind. Due to the difference between the shooting light and the monitor, a slight chromatic aberration is normal.2. Due to different measuring tools and measuring methods, it is normal for the data size to have an error of 1-3cm. Thank you for your understanding.