Six-in-one Barbell, Kettlebell and Dumbbell -Black Friday SpecialLONG LASTING: The new and adjustable weight design allows you to increase the weight over time without having to buy new weights. NEW SAFETY MEASURES: Diamond knurled grip allows for a secure and non slip grip, thickened nuts ensure that no weights fall and the anti slip design prevents you from cutting your hands. CONVERTIBLE FEATURE: The dumbbell can be converted into a barbell using the connecting bar and the push up bars can be used to turn the