This pair of hexagon dumbbells with rubber is perfect for your fitness regime, suitable for home, gym and office exercise. Each weight is built with metal and rubber, which is durable and not easy to scratch the floor. The knurl guarantees your safety when you do alternating dumbbell curl, overhead shrug, dumbbell triceps kickback, etc. It's an ideal way to make exercise routine with the dumbbells. HOMCOM Hexagonal Dumbbells Kit Weight Lifting Exercise for Home Fitness 2x10kg in Black Size: Standard