Material: Ratchet wire strainers are constructed with Aluminium casted tooth wheel,Galvanized Steel frame and equipped with a locking for improved performance.Galvanized to deter rust. Easy to Installation: In-Line Wire Strainer should be located in the middle of long runs of wire or between two corner posts with excellent performance ,helps you tighten your high-tensile wire on your electric fence. Considerate Design: This fence tensioner comes with locking frame, which can effectively prevent the tooth wheel from rotating to increase the reliability after installation. Good Performance: Our Heavy Duty In-Line Strainer with Compression Clip applies high-tensile compression on high-tensile fence line. Can be adjusted using a standard wrench.for a sturdy fence to keep your livestock in the right place. Widely Applications: Perfect use for farm, garden, yard, villas, estates, vineyards and universal privacy filed., Manufacturer: Jnchdghwa