Crafted from non-anodized aluminum alloy and Ø0.08 in. (2.0 mm) PE-coated spring wire, this 50-pack greenhouse spring wire and lock channel kit gives commercial growers, hobby greenhouse builders, and CSA farmers everything needed to attach poly film, shade cloth, and insect netting across a full hoop-house build. Each aluminum channel runs 6.56 ft. (2 m) long with a 1.2 x 0.4 in. (29.5 x 11.2 mm) cross-section at 0.05 in. (1.2 mm) thick, rigid enough to grip the wire tightly but flexible enough to bend along curved hoop bows without snapping. The matching wiggle wires come finished with a black PE coating that protects greenhouse film from sharp metal scuffs, so panels last longer between change-outs, and lets the wire pop in and out for seasonal swaps. Installation is straightforward: fix the lock channel to the greenhouse frame with the included fasteners, lay the poly film over the channel, then press the spring wire down into the slot to lock the film in a clean, weatherproof seal. The full kit weighs 46.9 lb. (21.26 kg) and supports plastic, sunshade, and winter insulation film attachments across vegetable, flower, and breeding greenhouses. Worried about long-term aluminum corrosion in a damp greenhouse environment? The non-anodized aluminum alloy is built to resist humidity-driven pitting and stay shape-stable for many growing seasons.