Versatile Weight Range: This 150 lb dumbbell set includes five pairs (5, 10, 15, 20, and 25 lbs), ideal for full-body strength training and targeted workouts, suitable for beginners and advanced users, supporting progressive overload and high-repetition exercises. Durable & Protective Design: Made of cast iron with chrome-plated handles and rubber-coated, these dumbbells resist rust, protect floors, and reduce noise during workouts. The durable rubber coating ensures long-lasting use.