Free up precious cargo space in your BMW X1 by using this Slimline II Roof Rail Rack Kit to transport your favorite adventure gear so you can always have room for your travel companions.-KRBX004T - BMW X1 (2009-Current) Slimline II Roof Rail Rack Kit Consisting of: 2x GOFR001 - Rail Foot Base (Pair)2x GOFR015 - Flush Rail Outer Grips / No. 72x GOFR036 - Flush Rail Inner Grips / G1x RRAC928 - Plastic Spacer for Rail Foot Base / 6mm (Pair)1x RRSTA06 - SLII Tray - 1165mm(W)X1156mm(L)1x WDST011 - Wind Deflector 20mm Lip Extra Narrow Pair /1165mmMaterial Used:Black epoxy powder - coated T6 aluminiumHigh strength steelApproximate Installed Weight: 22.66kg (49.96lbs) The t-slots on the tops and bottoms of the rack tray slats and edge profiles accommodate standard 8mm bolts.To determine the approximate height from your vehicle’s roof to the top of your Slimline II Roof Rack, add the height of the Slimline II Tray (50mm/2'') to the height of the Foot or Grab-on Foot listed above.If your Slimline II Roof Rack kit uses Legs, add the height of the Slimline II Tray (50mm/2'') to the height of the Legs to determine the height of the rack from your vehicle's rain gutters.If your Slimline II Roof Rack kit uses Foot Rails, add the height of the Slimline II Tray (50mm/2'') to the height of the Foot Rails to determine the height of the rack from the crown (highest point) of the vehicles roof.Shipping Dimensions:Width: 440mm (17'')Length: 1730mm (68'')Height: 160mm (6'')Shipping Weight:Weight: 22.6kg (50lbs)