These are durable and inexpensive slings made from 18mm nylon webbing. They are great for everyday cragging and anchor-building. Now comes in 5 different lengths 10" to 189". Product Details : Weight: 10" 0.7 oz. (22 g), 23.5" 1.6 oz. (45 g), 47" 3 oz. (87 g), 94.5" 6 oz. (172 g), 189" 12.4 oz. (354 g) Lengths: 10" (25 cm), 23.5" (60 cm), 47" (120) cm, 94.5" (240 cm), 189" (480 cm) Strength: 22 kN (4950 lbf) CE/UIAA certified Color: assorted