STEELCRAFT 88-07 Chevy/GMC Silverado/Sierra 8' Long bed (Classic) | Tri-Fold Cover | Tonneau Cover | Bed Cover TRI-FOLDING (SOFT) DESIGN.LOW APPEARANCE AND LIGHT WEIGHT.NO Drill; easy installation COMPLETE ASSEMBLED FOR QUICK INSTALLATION.WATER TIGHT RUBBER SEALS KEEP MOISTURE OUT ALUMINUM STRUCTURE FOR DURABILITY AND IMPROVE FUEL MILEAGE TWIST CLAMP DESIGN PROVIDES TENSION AND SECURITY FOR COVER.ALL STRUCTURE POWDERCOATED FOR CORRSION RESISTANT 99-07 Chevy/GMC Silverado/Sierra 8' Long bed (Classic)