Sufficient Quantity: You will receive 50 pack fence insulators, enough to meet your various uses and replacement needs. Easily mounted on 1/4'' to 9/16'' columns and 5/8'' fiberglass posts, compatible with different fence post materials. The bright yellow color makes it easy to spot Quick Installation: Removable screw tight insulators can be easily fixed to cylindrical or fiberglass columns by simply rotating the screws until fixed to the column, without the use of other tools, easy installation. Note: Tighten the screws to avoid loosening and slipping Easy to Adjust: Cididu round post Insulator allows the fence lines, multiple strands of wire, multiple strands of rope to run freely, allowing the insulator to slide freely along the post. Electric fence ring insulator is suitable for high-strength steel wire, multi-strand steel wire, rope, etc Reliable Materials: These electric fence insulators are made of strong plastic material that provides insulation, prevent electric current flow, high strength, good insulation, does not break or deform easily, is fast to the sun and rain, and is harmless to people, pets and wildlife Wide Range of Applications: Our insulators for wooden post are suitable for a variety of applications such as pet fencing, livestock control in agriculture and ranching, garden protection, and can also be used for setting barriers and managing farmland Cididu round post Insulator allows the fence lines, multiple strands of wire, multiple strands of rope to run freely, allowing the insulator to slide freely along the post. Our insulators for wooden post are suitable for a variety of applications such as pet fencing, livestock control in agriculture and ranching, garden protection, and can also be used for setting barriers and managing farmland