Feature: 1. Aluminum Alloy Material: The tension fence wire tightener is made of selected aluminum alloy, fine materials, exquisite craftsmanship, rainproof, sunscreen and weatherproof. 2. Evenly Balanced: The pinion gear is adopted to take up the wire, which is more balanced and easy to use, and solves the inversion of the wire tensioner. 3. Upgrade Performance: Precise one way components assembly, precise tight wire, stepless speed change. Security force induction, fence wire rope tightener with self locking function. 4. Wide Compatibility: This aluminum alloy fence wire tightener is compatible with all tension fence systems, up to 3MM wire can be penetrated. 5. Scope of Applications: Suitable for fixing and tightening electronic fences to take care animals and plants in the farm. Suitable for garden or farm safety. Specification: Item Type: Electric Fence Tightener Material: Aluminum alloy Gross Weight: 295g / 10.4oz Color: Silver Product Size: 5x3x3cm / 2.0x1.2x1.2in Product Diameter: Maximum 3MM steel wire can be penetrated. Package List: 10 x Electric Fence Tightener