Built to provide lightweight and versatile protection, the Ball Nut fits effortlessly in the smallest of parallel-sized cracks, pin scares and small flares - making it a secret weapon for aid and trad climbers alike. 39 g./1.4 oz. total weight. Range: 4.5mm (min) to 9mm (max). Strength: 9 kN. Color-coded for fast identification. Narrow depth fits shallower cracks than traditional camming units.