USTECH New Patent Pending Slide-n-Adjust 4-Tier Shoe Rack. This unique design allows you to stow away your shoes in two desired shelf positions, Flat or Angled. Now you have real choice and flexibility. Most other racks offer you no choice and usually just one shelf positions. With our inventive Slide-n-Adjust bracket, now you decide on the shelf position. More so, besides offering dual shelf positions we made it easy to adjust shelf positions without needing to disassemble the shoe rack. Many other racks require disassembly for a similar function. In addition, our new design allows for a quick and easy assembly. First you screw in all end parts to the tubing. Then you place the tube on the side sliding attachment. Select your position and finally tighten the screw part, repeating the same steps. It is that simple. No extra hands or help needed. Besides all those functions our rack is also expandable and stackable, allowing you to increase the width to accommodate your space as well as stacking them for greater shoe organization. The USTECH 2-Tier Shoe Rack, USTECH 3-Tier Shoe Rack, USTECH 4-Tier Shoe Rack, and USTECH 5-Tier Shoe Rack are all interchangeable and work the same if you desire combining them for maximum storage optimization. All shoe racks can expand from 23 inches up to 45 inches.