Gold"s Gym 40 lb Adjustable Dumbbell Set: * The ideal choice for both beginners and the advanced fitness enthusiast * Fully adjustable with four 6 lb plates, four 2.5 lb plates, 2 threaded solid dumbbell handles and 4 spin-lock collars * Plates are made of solid cast iron with a baked enamel finish * Different weight plates allow you to create several weight combinations with the dumbbells * Weights can be gradually added as the workouts intensify * Ideal for home use * This product contains one or more chemicals known to the State of California to cause cancer, birth defects or other reproductive harm