This kit creates a full-size rack that sits above your Mercedes X-Class’s (2017 + w/ MB Style Bars) load bed. This Slimline II cargo carrying rack kit contains the Slimline II tray (1345mm x 1560mm) and 4 Pickup Truck Bed Universal Legs that fit into the existing factory/OEM bed tracks. No drilling required.-KRMX001T - Merc X-Class w/MB Bars (2017-Current) SLII Load Bed - by Front Runner Consisting of: 2 x LASS026 - Universal Load Bed Leg / Tall (Pair) - by Front Runner 2 x RRAC109 - Gutter Mount Leg Extensions - by Front Runner 1 x RRSTG08 - Slimline II Tray - 1345mm(W) X 1560mm(L) - by Front Runner Material used: Black epoxy powder-coated T6 aluminium 3CR12 Stainless Steel Approximate Installed Weight 31kg (69lbs) 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(tm)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, Grab-on Foot or Strap-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(tm)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: Width450mm (18'')Length1610mm (63'')Height 270mm (11'') Shipping Weight: Weight36.5kg (80.4lbs)