BT8390 horizontal mounting rails are the central component of any System X installation whether it be for a complex multi-screen install or a single screen application. Made from aluminium the rail itself is sturdy yet lightweight and is designed to support a variety of interface arms and mounts allowing screens and other AV equipment to be fitted to the rail. Available in a range of lengths the BT8390 can be mounted onto walls poles or System X support columns using a range of different fixing kits (available separately). Rails can be cut to shorter lengths as required or joined together using extension kits (also available separately) for much longer installs.&lt;br /&gt;&lt;br /&gt;- Part of the System X range for use in a variety of applications; wall ceiling trolley etc&lt;br /&gt;- Ideal for video walls menu boards and other multi-screen installations&lt;br /&gt;- Can also be used for premium single screen applications&lt;br /&gt;- Compatible with a variety of interface arms and collar compatible accessory mounts&lt;br /&gt;- Suitable for landscape or portrait installs&lt;br /&gt;- High-end aesthetic quality&lt;br /&gt;- Available in a variety of lengths and can be cut if necessary&lt;br /&gt;- Multiple lengths can be joined together using BT8390-EXT to create longer rails&lt;br /&gt;- Lateral adjustment - position interface arms anywhere along the length of the rail&lt;br /&gt;- Supplied with plastic end caps for a neat and tidy finish&lt;br /&gt;- Simple &#39;hook-on&#39; installation