These Wall Support Brackets come as a set of 4 and securely connect your Wine Rack to the adjacent wall. These clips are required for any Wine Racks over 1.2m in height and simply prevent both your Wine Rack and your Wine from becoming unstable. These Wall Support Brackets are suitable for all modular D.I.Y. Wine Racks. Please note that Screws are not included and will vary depending on the type of Wall behind your Wine Rack.