4 Pack Galvanized Steel Fixing Nails For Semi-green Artificial Grass Semi-green coated U-shaped pins. Made of strong galvanized steel wire. Ideal for nailing down and securing artificial grass, barrier mats, frost cloths, fences or even as secure tent pegs. U-shape design: U-shaped trapezoidal design for more tension in the ground, long life, bevelled ends for easy insertion into the ground EASY TO INSTALL: the sharp angle cut at the end of the pile penetrates easily in the barrier, anti-corrosion fabric, plastic film and heavy soil.Repeated use: The fixing nail is energy-saving and environmentally friendly. The stainless steel fixing nail is aging resistant and has strong oxidation resistance.