Foxnovo 5pcs Heavy Duty Camping Tent Awning Drill-in Iron Pegs for Hard Ground Color: Silver, black. Material: Zinced iron. Length: Approx. 20.5cm 8.07 inch. Diameter: Approx. 8mm 0.31 inch. Eliminate the hassle of hammering pegs in to hard ground with these pegs. Fit 8mm socket to an electric drill and screw the peg in to the ground in seconds. These stakes are meant for hard stony ground.