SKB Cases Rear Rack Rail Kit for 1SKB-R8. This SKB Cases rack accessory works with the SKB Cases Ultimate Strength Series Roto Racks. See the list of SKB Rail Kits below to find the right rear rack rail for your mixer racks. Note the standard rack size - a standard rack space is 1.75 inches (4.445 cm) in height and 19 inches (48.26 cm) in width. Rack spaces are commonly called "U" or "RU" as in 12U rack or 14RU mixer. Available models of SKB Cases Rear Rack Rail Kit: 1SKB-RRK4: SKB Cases 4U Rear Rack Rail Kit for 1SKB-R4 1SKB-RRK4 1SKB-RRK6: SKB Cases 6U Rear Rack Rail Kit for 1SKB-R6 1SKB-RRK6 1SKB-RRK8: SKB Cases 8U Rear Rack Rail Kit for 1SKB-R8 1SKB-RRK8 1SKB-RRK10: SKB Cases 10U Rear Rack Rail Kit for 1SKB-R10 1SKB-RRK10 1SKB-RRK12: SKB Cases 12U Rear Rack Rail Kit for 1SKB-R12 1SKB-RRK12 SKB Music Division makes a huge array of road-ready hard shell cases for moving music gear equipment and instruments. Give your roadies the best - SKB Cases makes just the hard case or carrying case that you're looking for to transport your band's music equipment. Equipment cases from SKB Cases can keep mixers soundboards turntables and other DJ and sound equipment secure and safe while traveling. SKB Cases makes plastic carrying cases and other gear cases that meet Air Transport Association (ATA) specifications. We stock a full line of SKB Cases with flight cases music cases rack cases and more We are your best source for dry boxes carrying cases and gun storage cases from SKB Cases. Every hauling case we sell comes with our standard 100percent customer satisfaction guarantee as well as the services of our knowledgeable product experts Features of SKB Rack Rail Kit: Weight: 3 lbs Adds additional racking space to your racks Package Contents: SKB Cases Rear Rack Kit SKB Cases Rear Rack Rail Kit for 1SKB-R8 1SKB-RRK8