Dumbbells a require more muscular control than barbells, thus enhancing kinesthetic awareness.The best part of training with dumbbells is it allows the athlete to train through a greater range of motion than barbells on some exercises.Training with dumbbells allows you to select resistance training exercises based on their similarity to actual movements that occurs during sports.Dumbbells require more balance than training with barbells or machines, and balance is crucial for optimal performance.The Technix hex Dumbbell built-to-last weight features a solid cast-iron core for high-quality strength and reliable stability. Hexagon-shaped virgin rubber-encased ends help prevent rolling and promote stay-in-place storage.The handheld weight ensures long-lasting optimal performance from one workout to the next.The rubber hex dumbbell's contoured, textured chrome handle helps ensure a secure, comfortable grip. Its sleek design reduces hand fatigue while promoting ease of use and enhanced control.Perfect home workout equipment for isolations, full body, functional and HIIT workouts.The hex gym dumbbell is sold in single piece and pairs.