Can be shipped USPS. The website will only charge UPS due to the windows, just make a note in the order and we will refund the shipping difference. For our Inside-Mount Swing Sash windows. Each pack contains 2 brackets to hold the corners of the window in and 4 swivels, 2 to keep window closed and 2 up top to hold the window open. All you need is your screws!*Note: Each Swing Sash Window comes with 1 pack included. These are just to have extra or replace your existing.