What you get
Black rubber bumpers at the standard 450 mm (17.75") diameter with a steel insert and a 50 mm hole. Light plates (10, 15 and 25 lb) come in pairs; 35, 45 and 55 lb plates are sold one at a time. The 230 lb set (two each of 10, 25, 35 and 45 lb) is the cheapest way to buy them.