CAP’s RSG-110T- 110 lb barbell weight set includes 1 x 5′ standard bar, 2 x standard dumbbell handles, 6 x 2.5 lb, 6 x 5 lb and 4 x 10 lb plates. 4 spinlock collars included as well. Plates are made of solid cast iron. Bars are made of steel. The ideal set for home use. Dumbbell handles and plates can be used for various arm exercises while the 5′ bar and plates can be used for overall strengthening and sculpting of all muscle groups. Warning: This product contains one or more phthalate chemicals known to the state of California to cause birth defects and other reproductive harm.