20kg Cast Iron Dumbbell Set packaged inside its molded plastic carrying case.Based on the contents label visible in the image, here is the breakdown of the components:Weight Plates: Includes 4 pieces of 0.5 kg plates (2.0 kg total) and 8 pieces of 1.25 kg plates (10.0 kg total), summing up to 12.0 kg of plate weight.Bars & Collars: Includes 2 chrome spinlock bars and 4 spinlock collars, which make up the remaining 3.0 kg of the set's total weight.Configuration: If split evenly into a pair of identical dumbbells, each assembled dumbbell will weigh exactly 7.5 kg (1 bar, 2 collars, two 0.5 kg plates, and four 1.25 kg plates).