Two bearings: With two bearings, the roller rotates smoothly and will never jam, preventing the rope from breaking due to excessive friction. Silent pulley wheel: All parts are securely installed, and the seals are positioned in the gaps, preventing them from rattling against each other and making a metallic noise. 200 kg load capacity: The pulley is made of 304 stainless steel, and all parts are thick. It weighs 340 g. 360° swivel ring: The pulley block can be rotated 360 degrees to prevent the rope from tangling. The maximum rope size is 10 mm.