TrailFX Hard Tri-Fold Tonneau Cover Low Profile Black Plastic Model TFX2521TrailFX Hard Tri Fold Tonneau Cover Low Profile Black Plastic Model TFX2521 It's that easy, just fold and go. Probably the world's easiest cover. No tools required, no damage to truck bed, no problems. Mounts Flush To Bed Rails Using Traditional Brackets And Slam Latches Lockable Using Tailgate Handle Lock Three Panel, Solid Surface Design Two Riding Positions: Closed Or 2 3 Open Strong Fiberglass Reinforced Polymer Top Skin With Aluminum Bottom Skin