These are the massive weight plates and barbell you see on the TV when you're watching the professional weightlifters lift those awesome weights, those very large weights are Olympic sized weights and that's exactly what your buying here the big Olympic weight plates and Olympic sized barbell to go with it, you get the following weight plates in the set; two 15kg and four 10kg and 5kg Olympic bumper weight plates. That is 10 Olympic size rubber bumper weight plates totaling 85kg to go on the 72-inch long 15kg Olympic sized barbell which is included and makes up part of the weight in the set. The 72 inch barbell is a standard-sized Olympic barbell with a bar diameter of 51mm to fit the standard sized Olympic plates with a hole diameter of 52mm so you can use this Olympic weight set with any other Olympic barbells or weight plates that you may have and they will all fit together. The barbell weighs 15kg and has a max load weight of an incredible 350kg. The Olympic bumper plates are made