Trulap 8592 G4 Black Dumbbells

Adjust from 4 to 42 kg in seconds. Adjusts in micro increments, simply twist the handle while the dumbbells are in the docking base to adjust. Displays both pounds and kilograms. replaces 52 traditional dumbbells. The dumbbell length automatically increases or decreases based on the selected weight, giving you a more compact feel at lighter loads.