Go Rhino 4" OE Xtreme Step Nerf Bars with Mounting Brackets Kit Model 684435180T Mercedes Metris Van Racks Style Under Bed Truck Box M Series Style Under Bed Truck Box Lock System 3 Point Latch Install Time (hours) 1 Material Steel Color Gloss Black Construction Heavy Duty Welded Durability Maximum Key Alike On Request Latch Mechanism Latch Lid Construction Heavy Duty C Channel Reinforced Lid Profile Single Mounting Location Under Bed Opening Type Single Lid Security Extreme Warranty Limited Lifetime Weather Strip Memory Resistant D Shaped Ribbed Latch Yes Powder Coat Finish Yes UPC 783965042260 DIMENSIONS easily dropping into the truck bed pucks without any tools required They are offered in lengths from 52" to 87" to fit regular or as a complete kit with mounting brackets included