4 in 1 Multifunctional Dumbbell SetWith The Trakmaxi Adjustable Dumbbell Set, you can get a pair of dumbbells also barbells, kettlebells and push-up stands, which help you do many exercises including bench presses, squats. A complete set of dumbbells perfect for presenting the home gym. Ergonomically Durable MaterialsThe Environmentally dumbbell pieces exterior is made of high-quality PE materials, which prevents floor abrasion,Safe and secure, soundproof. Contains concrete formed by a mixture of cement and iron sand, which effectively guarantees zero leakage and real weight.