Item Type: Pulley Material: IronandPlastic Weight: Approx. 435g or 15.3oz Size: Approx. 9x4.5x2cm or 3.5x1.8x0.8in Slide Size: Approx. 0.8cm or 0.3in Uses: Aquaculture Waterline Greenhouse, etc 1Premium Material: The automatic waterline pulley is consist of metal hook, plastic wheel, strong and durable, long service life. 2Easy for Instalation: Simple installation, the livestock fixed pulley is suitable for most livestock farm using. 3Excellent Performance: The breeding farm pulley has strong bearing capacity, waterproof, anti rust, high temperature and corrosion resistance. 4Surface Treatment: The pully is made of iron, the surface is bright and shiny, does not release toxic substances, it is environmentally friendly, non toxic and harmless. 5Exquisite Craftsmanship: The automatic waterline pulley has professional manufacturing, fine workmanship, practical tool.10 x Pulley Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.