Material: PP+PE+carbon steel Size: Approx. 9cm/3.54 inches long Features: This electric fence insulator is screw-type design, which can firmly fix the wires, reduce abrasion and prolong the life of the wires. Suitable for high-strength steel wire, aluminium wire, multi-stranded wire and so on. Widely used in electric fence for all kinds of animals, meet your different needs and bring you a good experience. High quality material: made of high quality PP+PE material, the head of the electric fence insulator is durable and smooth, the screw is made of high hardness carbon steel Ring screw-in insulators and an insulator socket tool which can be directly connected to an electric drill. Sufficient quantity to meet your daily needs Wide range of applications: ring insulators behind the fence are suitable for use with high-strength steel wire, polywire, aluminium wire, rope and electric fence tape, with high resistance to high and low temperatures Practical tool: High strength, sun and rain resistant, weatherproof, non-degradable, environmentally friendly, and harmless to people and livestock, post insulators can be a useful tool for yards, ranches, and farms EASY TO INSTALL: Using sharp and highly hardened threads, you can easily screw the fence insulator into the wood fence without using any tools. You can also use a drill with an insulator socket tool to install the insulators, which is less labour-intensive and more efficient