2-in-1 Dumbbell and Barbell: Transition from dumbbells to a barbell in seconds. Easily attach the connecting rod to transform the hand weights into a barbell for ultimate versatility. Get your workout done with one piece of equipment. 8 Adjustable Weights: 8 weight plates are included: 2.2lb x 4, 2.75lb x 4. Mix and match weight plates to create the ideal weight for your workout. Easily slide plates on dumbbells and barbells and secure in place with the durable 4 spinlock collars. For All Fitness Levels: From beginner to advanced, the free weight set is user-friendly and easy to manage for different levels of exercise. Adjust as needed to perform your workout without any complications. Slip-resistant and Cushioned: Designed for comfort, dumbbells provide stabilization with the rubber-coated plates while the barbell's connecting rod gives the ultimate support for the individual to perform their best in their workout. With the 2-in-1 feature secured by spin-lock barbell collars, there's no need to spend more on other gym equipment. Plus, your home gym will be set up for convenience and safety by the slip-resistant and cushioned attributes.