More slats for more adventure. Add slats to customize your existing Front Runner Rack Tray. Create additional mounting points, a solid tray surface.-RRSS1575 - 1575mm Slat - by Front Runner Consisting of: Material Used: Black epoxy powder - coated T6 aluminium Approximate Installed Weight: 1.95kg (4.3lbs) Shipping Dimensions: Width: 90mm (4'') Length: 1570mm (62'') Height: 23mm (1'') Shipping Weight: Weight: 1.95kg (4lbs)