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"Expandable Tube Chocks: These puppies are big! For fist crack and offwidth aficionados (sickos) Big Bros rule. The expanding tube chock design is stable, lightweight, easy to use and strong. Because of their fixed nature when they're placed correctly they're almost impossible to dislodge when you're grunting by them, and they make a nice smooth rope guide at the lip of a roof. Their expansion range is phenomenal! A #4 Big Bro has greater range than an entire set of traditional cams! All Big Bros are designed to be slung with Maxim 5mm Tech Cord or 5.5mm Spectra type cord. SPECS: #1 Weight: 154 g Strength: 12 kN Range: 81-109 mm, 3.2-4.3 in #2 Weight: 190 g Strength: 12 kN Range: 101-145 mm, 4-5.7 in #3 Weight: 235 g Strength: 12 kN Range: 135-203 mm, 5.3-8 in #4 Weight: 338 g Strength: 12 kN Range: 191-305 mm, 7.5-12 in"
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