High quality: made of high quality nylon + metal, very durable, anti-aging, smooth surface, easy to break, wear resistance and long service life. Help the pulley block used for outdoor wiring to tighten the rope. If you want to hang heavy objects on long wiring, please use lifting appliances to prevent them from hitting the ground. Combined with this Clothes Line pulley, you can hang longer Clothes Line and heavy objects well. It is easy to use. You can hang several more items according to the weight. Package includes: 2 Clothes Line separators, spreader pulleys; Quiet operation, weatherproof, UV resistant, and strong in the worst conditions. Application scenario: the Clothes Line separator is very suitable for hanging heavy objects, clothes and other items. It is durable and reliable. It is suitable for family use. It can well hang longer clothes lines and heavy objects.