Review on 📚 Black Metal Floating Shelf Set of 5 - Space Wall Mount 34 Inch CD DVD Organizer Media Storage Rack by Luis Despain

They are supplied with spirit levels but the fasteners are not straight, you may have to check the position of each in relation to the first to align them. I also bought a 2 pack along with a 5 pack and found that the 2 pack was slightly larger than the 5 pack so pouches from the 2 pack were placed at the ends. I bought a floating shelf from IKEA which I installed first, which gave me a flat surface to work on and another point to level the shelves.