Package include: 10pcs Ratchet Wire Strainer. Materials: Galvanized Steel frame + Aluminium casted tooth wheel, rugged and long-lasting. Easy to use: When the fence line is loose after long-time use, you can re-tighten the fence by simply turning the ratchet. Widely use: To fix high-tensile metal wire. Modify utilizing standard wrench.Waterproof withstand cold weather. Ideal choice: Ideal use for farm, garden, yard, villas, estates, vineyards and universal privacy filed. 1. WIDELY USED: To fix high-tensile metal wire. Modify utilizing standard wrench 2. LONG USING: Durable solid Galvanized steel, could use for a long time. 3. Should be located in the middle of long runs of wire or between two corner posts every 2,000 to 2,500-feet 4. Simple structure, not easy to damage. Waterproof withstand cold weather