Specifications of Hexagonal Dumbbells Made from the best treated materials that are resistant to rust and breakage, it has a soft texture that is appropriate for use by both men and women, and it has a comfortable grip that doesn't hurt the hands. The required weight is determined by adding the combined weight of both hands when filling the dumbbells in pairs (each hand is one piece). For instance, if we use 40 kg dumbbells, the right hand would hold 20 kg of weight and the left hand would hold 20 kg. The advantages of dumbbell use Whether or not dumbbells are used, maintaining the athletes' fitness is crucial for all sports.