Petzl P21 Fixed Cheek Tandem Pulley with two alloy sheaves. Colour red. This pulley is designed for use with Tyrolean traverses with textile ropes up to 13mm maximum diameter, & also as a component in hauling systems. Each sheave is fitted with self lubricating bushings & can be used at speeds up to 10m/s. Weight 195g. EN12278. Individually tested. Working load 2.5kN x 4 = 10kN. Breaking strength 6kN x 4 = 24kN. See Manufacturer Instructions.