Features AutoLatch II System,Flexible rubber seals/vinyl coated hinges,Made In The USA,Extruded aluminum channels support the panels to hold up to 400 pounds while weighing only 50,Tri Fold Design,reduced metal-on-metal contact help reduce vibrations and noises found in other bed covers,Rigid standoffs with rubber pads keep panels properly spaced when folded,Integrated storage clips hold AlloyCover secure