Premium Material: The electric fence insulators are made of high quality galvanized steel and polypropylene. High strength, good insulation, no deformation, protection against sun and rain Safe: The screw-on insulation is environmentally friendly and does not hurt people, animals. So you can use it with confidence Wide range of uses: The grid system accessories can be used as a start, end, corner or line insulator, you can choose the use at will, bringing a safe environment. Low Loss: This angled antenna isolator fits live wires without power loss and is suitable for standard and low impedance load controllers. Scope: electric fence wire insulators are suitable for livestock electronic fence, mainly used in tetragonal tube, round tube and angle iron tube. Specification : Item Type: Electric Fence Insulator Material: galvanized steel + polypropylene (PP) Product Length: Approx. 9.5cm/3.74inch Gross weight: approx. 1195g/42.15oz Specifications: M6 screw type Application: Suitable for livestock electronic fence, mainly used in tetragon tube, round tube and angle iron tube. List of packages: 50 x Flat Head Insulator 100 nuts