I have a question about this item then, because they look so neat! I've never seen them before -- do they act like a fence or something that will stop you from walking across them? if so, might be a nice way to close off areas when opening up the island to trades. I had a hefty turnip price earlier this week and plan on hosting my island for others but I'd like to close off areas other than the path to the shop, so as to prevent any tomfoolery.