Dumbbells: The best fitness accessory for weight settings for exercising body muscles. Dumbbell exercises can burn calories. This weight loss exercise not only burns calories, but also improves muscle strength, muscle endurance and heart health.Feature:This is a single adjustable dumbbell. For balance exercise, we recommend that you buy two sets of dumbbells.Product Name: DumbbellDumbbell Category: Electroplating DumbbellsMaterial: Solid steelApplicable season: All seasonsEfficacy: Modify muscle lines to make the whole body muscle strong er!Product feature: 5 gear, one-way 1s fast adjustableProduct List:1X12kg (25lb) dumbbell1 x ManualWarning:Do not try to adjust the dumbbell weight unless securely housed in the tray provided.Please use dumbbells carefully to make sure they don’t fall or forcefully place it into the tray.Please press the base tray down before lifting the dumbbell.