Feature:1. PLASTIC MATERIAL The pulley is made of high quality plastic material, strong and wear resistant, ensuring long service life.2. RELIABLE USE Sturdy, durable, reliable, waterproof, rust resistant, high temperature resistant and corrosion resistant.3. MAIN PURPOSE The greenhouse pulley is used for hanging heavy items to reduce load, practical to use.4. EASY TO INSTALL Installed in chicken houses and other livestock farms using pulley, convenient and easy to use.5. WIDE USE It has a wide range of uses and is suitable for agriculture, barns, greenhouses, etc.Specification:Item Type: PulleyMaterial: PlasticProduct Size: Approx. 6x2.1x1.5cm / 2.4x0.8x0.6inSliding Mouth Size: Approx. 0.6cm / 0.24inHole Diameter: Approx. 1cm / 0.4inWeight: Approx. 218g / 7.7ozUse: Breeding, waterline, greenhouses, etc..Package List:25 x Aquaculture Waterline PulleyNote:Please allow slight errors due to manual measurement.