Forged and double anodized for an extra durable finish. The BlueWater Rescue 8 is larger than a regular figure 8 and is designed specifically for rappelling and lowering heavy loads in rescue situations. The larger size allows for better control and heat dissipation. Designed for use with double 7/16" ropes and single or double 1/2" ropes and larger only. 7.4 oz. 6.5" x 6". 22 kN.