Lock Channel & Wiggle Wire are the essential components for fixing greenhouse plastic film, shade net and insect net.Made of high‑quality galvanized steel, the lock channel delivers strong rigidity and excellent anti‑rust performance for long‑term outdoor service life. Multiple specifications are available to match different greenhouse frames.Our wiggle wire is manufactured from spring steel with full PVC coating. Its flexible wavy design clamps film firmly inside the channel. The specially colored coated ends prevent scratching and tearing of plastic film, offering great UV‑resistance and anti‑corrosion properties. Multiple sizes and styles of wiggle wires are for your selection.Quick & simple installation with solid clamping force. They will not easily loosen under strong wind conditions. Widely applied in commercial agricultural greenhouses and polytunnels.