12" internal purse frame. In upper right of picture it shows this frame hinged and open. This frame comes to you hinged. To insert into purse, tote or bag: unhinge both ends, slide each piece through its prospective internal opening or casing that you have made and rehinge. To unhinge, use pliers to pinch the end of the frame to release pressure. Work the pin out of end. To rehinge, do the opposite. Frames can be removed for bag to be laundered.