Trango Big Bros are must have protection pieces for wide cracks. Their huge range and sleek design save on both weight and racking space compared to large cams. In addition, they resist pull in any direction, giving you added security, as you confidently climb past them. The expanding tube chock design is stable, lightweight, easy to use and strong. Trango recommends slinging the Big Bro with 5.5mm spectra, and specifically recommends against standard nylon. Weight: 154 g Strength: 12 kN Range: 81 109 mm, 3.2 4.3 in.