【1-Second Weights Change】: Turn the handle with one hand to quickly adjust to the required weight. This adjustable dumbbell allows you to enjoy a simpler and smoother workout. 【New Safety Structure Design】: Double safety buckles on the tray and handle bar, so that the adjustable dumbbells can only be adjusted on the tray, ensuring the safety and stability of the dumbbell pieces during exercise after leaving the tray.
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