8 Divider Joining Deep MirroFlex Trim

8 Divider / Joining Deep - MirroFlex - Trim. MirroFlex Trim is available to join and finish MirroFlex Structures. Edge J-Trim, Divider Trim, Inside Corners and Outside Corners are available in 4’ lengths and can be easily cut to size. The Edge J-Trim simply slides onto the cut edge of the panel. Most installations use decorative wood or metal moldings, but if these elements are not used, MirroFlex Trim will finish the edges nicely. What- 8 Divider / Joining Deep - MirroFlex - Trim.