Strength Training

The PeakFit K-4 is a single adjustable dumbbell with four weight settings — 1kg, 2kg, 3kg, and 4kg — adjusted using a V-shape collar locking mechanism in under 30 seconds. Flat-sided base that never rolls, full-length textured grip, stores in a standard drawer. One compact unit replaces four separate fixed dumbbells for home strength training.