What bs Edge J-tiny and do I need to use TY Edge J Trim is # tribe piece that is available to use on the cut or exposed edges of your backslash. The trim is nat required to be used with the backslash panes, but does give the backslash a nice, finished look. The rain places are malleable iy the same colors as the backslash pearls. See our Sades Backless Tom Installation Guide For more Information.