1. Inner core is cement with cement, and thickened PVC outer protective cover, which can effectively protect ground and dumbbells.     2. Can help women develop perfect lines, slim, thin arms, and create a hot and sexy body shape.     3. One piece filling molding, high density solid filling, uniform center of gravity, durable and anti falling.     4. Long term adherence to dumbbell exercises can modify muscle lines and increase muscle endurance.     5. You can exercise all parts of your body, maintain a healthy life habits, and make you healthier.         Specification: Item Type: Hex Dumbbell     Material: Cement+PVC     Function:      1. Long term adherence to dumbbell exercises can modify muscle lines and increase muscle endurance. Regular exercises with heavy dumbbells can make muscles strong, strengthen muscle fibers, and increase muscle strength.     2. Can exercise upper limb muscles, waist and abdominal muscles. For example, when doing sit ups, holding dumbbells with both hands at the back of neck can increase load of abdominal muscle exercises; holding dumbbells for lateral bending or turning exercises can exercise internal and external oblique muscles; holding dumbbells straight The shoulder and chest muscles can be exercised by raising the arm forward and laterally.     3. Can exercise lower limb muscles, such as holding dumbbells for squatting up with one foot, squatting with two feet and so on.              Package List: 2 x 2KG Hex Dumbbell