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.

Building a home gym shouldn't be a battle against physics. Reclaim 80% of your floor space with the PeakFit K-4 Precision Kinetic Node. Featuring medical-grade mechanical integrity and a zero-slip dovetail interface, it’s the ultimate modular strength solution for high-density urban living.