The 6 In 1 set can beabe as 2 dumbbells, 2 different barbells, 2 different kettlebells, as well as a pushup stand. All of these exercise tools are modular with one another. To lift dumbbells, load the weights onto one of the screw poles, and fasten them on with nuts, one on each side. To lift a barbell, twist both screw poles onto the padded bar and get ready to lift. The handles can be used on their own as a pushup stand, but can be fastened onto the screw poles as a kettlebell. This affordable, high-quality dumbbell set comes with different sizes of weight plates for you to adjust to your desirable weight. It is great for your upper body workouts, which helps tone and sculpt your arms, shoulders, back, biceps, triceps, chest, legs, and abs. With this dumbbell set, you can exercise at home, in the office, or any place and at any time.