Butterslay 12-In-1 Fast-Adjust Dumbbell With 8 Weight Plates & Tray, Anti-Slip Handle Design, Variationfrom 3lbs To 40lbs, For Home, Office, Gym, Balck * Red

1. Replace 12 dumbbells with just one, saving space and providing gradual resistance increases. 2. Heavy-duty steel and water-resistant covers boost durability for long-lasting workouts. 3. Quickly adjust weight from by simply twisting the anti-slip handle for a smooth workout. 4. Prevents accidental changes in weight with a two-step lock that only activates when placed on the tray. 5. Nice for both beginners and pros, offering flexible weight options and steady progression. Color: Black & Red Materials: Steel, PP, PPR, ABS, Nylon Assembled Dimensions: 16″ L * 8″ W * 8″ H 12 Weight Settings (lb): 3, 7, 13, 14.5, 17, 20, 24, 27, 29, 31, 36, 40 Item Weight: 42.8 lb Shipping Weight: 45.6 lb Package Contents: 1 * Adjustable Dumbbell 1 * Assembly Instructions Note: 1. Please allow a 1/2″ measurement tolerance. 2. To adjust the dumbbell weight, fully insert the handle into the base (in the lowest position) before turning it. Align the red arrows with the numbers on both dials until you hear a "click-clack" sound, confirming the adjustment. If the red arrows aren't aligned, the weight plates may fall off, causing uneven weight distribution. In this case, reset the handle and adjust it again.