Feature●【High Quality Material】These V-groove pulleys are made of sturdy and durable galvanized stainless steel, which is wear-resistant, high-temperature resistant, and has a strong structure. They are also corrosion-resistant, rust-proof, and waterproof, making them perfect for indoor and outdoor use.●【Roller Bearing】The swivel pulley rope design features two carbon steel ball bearings, high-strength screws, and anti-loose nuts, allowing for smooth and flexible gliding of pulley steel ropes. These lifting cranes bottle pulls can effectively reduce vibration and minimize noise, ensuring a quiet and smooth operation.●【Practical Design】With a load capacity of 200 kg, these castors for washing lines have a 360-degree rotation design that prevents the rope from knotting, and a smooth roller that provides a large pulley. The pulley size is 5.6 x 3.2 x 4 cm, with a wheel diameter of 3.2 cm and a wheel thickness of 2.5 cm. The pulley has 4 mounting holes, making installation quick and easy.●【Easy Installation】Each pulley is equipped with 4 positioning holes, which make attaching the pulley with screws a breeze. The fixed top allows for easy rope handling, while the smooth-running pulleys provide excellent rope guidance.●【Widely Used】These rope rollers are suitable for use in a variety of general mechanical equipment modifications, as well as for everyday and professional use. They can be used for DIY home fitness equipment, fitness accessories, pulley machines, or for indoor and outdoor ropes, garage doors, washing lines, pulley systems, and more.Description