Introducing the FEIERDUN Adjustable Dumbbells, a versatile 4-in-1 fitness equipment that includes dumbbells, kettlebells, push-up stands, and barbells. This 20 lb (9.1 kg) set is perfect for a wide range of exercises, from bench presses and squats to push-ups and more. The adjustable design offers multiple weight options, with a single dumbbell ranging from 2.3 to 4.5 kg, a kettlebell from 1.6 to 5.2 kg, and a barbell from 3.2 to 9.5 kg. Constructed with high-quality polyethylene and a mix of iron, sand, and mud, these dumbbells are durable, inodorous, and resistant to scratches. The anti-slip ABS handle ensures a firm grip, while the 20mm thick foam padding on the connecting rod provides comfort and sweat absorption. The set also includes four safety nuts to keep the weights securely in place during use. With FEIERDUN's commitment to customer satisfaction, you can trust in the quality and durability of this product. Experience the convenience and versatility of the FEIERDUN Adjustable Dumbbells and elevate your fitness routine today.