Packing ListMain Barrier x1, Side Barrier x2, Strap x2, Bungee Cord x2, Belt Loop x4, Screw x2, Nut x2, Fixed Plate x4 | Double Stability2 bungee cords and 2 adjustable firm straps with metal grips can hold up the dog barrier tightly to the headrests. | For Backseats OnlyExtendable to fit your backseat area. Not recommended for front seats or fixed headrests |