ERGONOMIC KNURLED HANDLE Each dumbbell features an ergonomic handle with medium-depth knurling for a comfortable yet secure grip. The chrome-plated surface adds durability, while the knurled texture enhances control and safety across a wide range of exercises. CONVENIENT STORAGE SOLUTIONS The dumbbell rack features a sturdy steel frame with a durable black powder-coated finish, ensuring long-lasting stability and resistance to wear. Each dumbbell has a hexagon-shaped head that prevents rolling and allows for easy, secure storage. STURDY AND DURABLE These dumbbells are wrapped in durable rubber, making them tough enough to handle intense workouts while protecting your floors from damage. The rubber coating also reduces noise, resists rust and wear. VERSATILE EXERCISE KIT Mikolo offers a wide selection of dumbbells. The 350LB set includes 6 pairs of rubber hex dumbbells: 10LB, 20LB, 25LB, 30LB, 40LB, and 50LB—perfect for progressive strength training at any level. The 550LB set builds on this by adding 5LB, 15LB, 35LB, and 45LB pairs, for a total of 10 pairs.