These wallet frames are the bars that sit on the top edges of the miniwallets. You put the frame on one side and the front (with hole) on the other and pull them together to close your wallet uptight.
The flip part clicks in place nicely for security. They are prepackaged and come with enough screws.
The frames are closed on the sides, so the edge of your purse or wallet is completely enclosed in the metal.
 
NOTE: Gunmetal frames are 4.25" a tad shorter.