Size:Diameter:2.8mm-4.2mm Length: 4''-14'' Material:Q195 cold rolled,equal to AISI 1020 cold rolled Finish:No plating or finish,Glavanize Tensile strength: 400-600N/mm2 Feature: Turf pegs are perfect for installing ground cover - Row Cover - Frost Protection by securing the fabric to the ground. So the wind does not blow it away. The two-leg design allows for easier installation, and the 1inch bend creates a flat surface for driving the stakes into the ground.