Check the listing for details. Cargo Smart E Track Adjustable Dual Track Brackets. New Open Box. . Condition: New other (see details). Listed at 99.00 USD. 3 pairs of Cargo Smart E Track Adjustable Dual Track Brackets. New Open Box. Retails for ~ 60$ each pair These brackets let you store a toolbox, cooler or other flat-bottomed object on the E-track or X-track in your enclosed trailer. Simply adjust the brackets to fit your item, wrap the straps around it, and tighten until snug. Features: Dual brackets provide off the floor storage for bulky itemsStores coolers, tool boxes, and other flat-based cargo Adjustable bases accommodate cargo of different sizesHand knobs tighten bases in positionLips on bases prevent cargo from sliding off bracketsHoles in lips provide additional anchor points for tie-down strapsSpring-loaded fitting clips into E-track or X-track systemBrackets can be easily moved from one E-track or X-track slot to anotherPolyester straps with side-squeeze buckle secure cargo to bracketsHeavy-duty steel construction Specs: Weight capacity: 300 lbsArm height: 9-1/8"Lip height: 1-3/4"Adjustable depth: 8-3/4" - 10-3/4"Weight (each): 6.6 lbs