Eleven Peak Products 36-inch Adjustable Ground Spike for 4x4 Post Installation Ready for your fencing needs! Garden fence, dog run, alpaca enclosure...? These spikes are easy to install, swivel for perfect alignment, and accept a 4x4 post. Good used condition. $100 for all 11, price firm. Product link: https://www.homedepot.ca/product/peak-products-4-inch-x-4-inch-adjustable-ground-spike/1000164237