FitnessLAB Adjustable Dumbbells provide an easy and versatile at-home resistance training option. A unique model with no frills, the adjustable feature of the dumbbell set is worth having. Adjustable weights use a dial system to adjust the amount of weight on each dumbbell, including a safety lock to prevent the weights from falling off. Whatever your experience level with fitness and personal fitness goals, FitnessLAB dumbbells can get the job done. A quick turn of the dial allows you to navigate your preferred exercise level with ease. You can train with lighter weights or max it out with the heaviest setting. Perfect for increasing overall strength. Great for performing muscle sculpting workouts, deadlifts, squats, and lunges. As a safety feature, the dumbbell base and plate securely lock into place and will only rotate once the dumbbell is positioned back into its slot. The tough molding around the metal plates prevents noisy clanking and also helps to protect the dumbbells from wearing.