1.barbell and matching plates 2.weight training/lifting 3.many choice1.25kg-25kg 4.OEM service avaliable 5\nature rubber 1.25KG,2.5KG,5KG,10KG,15KG,20KG,25KG,diameter of hole can been made 51.5MM,28MM,26.5MM1. barbell, barbell plates and matching products, Rubber coated.2.many choice: the weight setting from 1.25kg to 25kg per set3.the limit of the chemical substance content is up to the standard ...