The In-Ground Socket Tube is a simple piece of infrastructure for mounting standards, flags or anything else with an upright post. You can use it to hold up an out-of-bounds marker for a soccer field, a flag for a relay race, or use two to hold up posts for a volleyball or badminton net. The posts can be inserted into the tube or removed easily, and the tube is long enough that the post will be well-supported and won’t tip over. This set also comes with a neoprene sealed safety cap, as well as an Allen wrench for quickly unlocking or locking it into place. The cap covers the opening of the tube when it is not in use to prevent objects or garbage from being dropped into it. However, in case any debris falls into the tube there is also a limit pin inserted into the tube about six inches from the bottom. By pulling the tube up from the ground and removing the limit pin, trapped debris should fall right out. Multiple widths are available to fit different sized standards.