Adjustable Dumbbell with Rotating Handle for Weight Lifting and FitnessAdjustable: Rotate the handle to adjust weights from 10 to 55 pounds in 5 pound increments. No knobs, pins, or leversjust twist and go! Efficient: Quickly switch weights between exercises to reduce downtime. Includes a storage tray to keep dumbbells secure and prevent rolling. Versatile: Easily switch between heavy and light weights for different exercises, from squats to curls. Functional: Combines 10 sets of weights into one with a comfortable,