This profile feature allows for a specific width reveal to be created between panels and around panel edges. The advantage to this track being all one piece allows for precision in installation. Using 2 edge pieces side by side to create a reveal is more expensive and labor intensive. The standard half inch edge and midwall reveal insert colors are black matte and coconut (off-white). Other inserts have been used in the half inch reveal such as bar stock, laminate and wood. Please check with your local NOVAWALL distributor for compatibility of other insert material. It can be used for both acoustical control or to add to the aesthetics of a design. This site fabricated stretch fabric system is for use on both walls and ceilings and can be used in our multi-inch systems.