Solid Steel Material: Filled in solid steel, cover with TPU material, Much more durable than other cement made dumbbells. Our weight set works great for exercises to help boost calorie-burning, and also great for physical therapy. It helps train and strengthen your quads, glutes, buttocks, abs, biceps, triceps, legs and knees at home or gym. Multi-purpose Design: Not limited to different dumbbells combination, the fitness equipment comes with a connecting rod and can be assembled as barbell to improve leg muscle training. Multi-functional strength training equipment offers a better training way than other home gym equipment. Easy to Store and Use: circle shaped dumbbell plates are designed to scrolling and provide easier storage.The chrome connecting rod is knurled to ensure firm grip, while dumbbells handle is coated with rubber to prevent easily slipping from hands. Perfect gifts for men.