DumaWall trims adds the finishing touch to your DumaWall backsplash or wall project. They are available in three styles. Inside/outside corner trims add a professionally finished corner and simply attach to the substrate. L-Trims are used to cover existing exposed tiles to provide a finished look. J-Trims are used to finish the terminal end of tiles when not adjoined to anything. They are available in 6 colors: White, Dark Gray, Matte Tan, Matte Brown, Light Gray and Almond.