Product: the quantity of these screw insulators is enough to complete the wood post electric project for extended coverage and multiple fence lines, you can also connect Nice Material: the black electric wire fence insulator is mainly composed of non conductive plastic materials and screws; These black plastic engineering has high mechanical properties and insulation properties; Product Design: the outlet insulators are very strong claw design with smooth , high strength, , weatherproof and well insulated, can accommodate most types of fence wire; Nice arc protection reduces short circuits; The product has no odor and is corrosion resistant Product Dimensions: these black electric wire fence insulators are precisely sized, with uniform wall thickness, poly wire, poly rope; Allowing steel wire, multi strand steel wire, multi strand rope to run Wide Range of Applications: these black electric post insulators are suitable for low impedance and standard load gate controllers, fence