Niles LCRFX Bracket Kit New Construction Brackets for LCR or FX Speakers New Construction Bracket For HDLCR And HDFX Loudspeakers Includes Wings To Span Standard Joist Spacing QuickSnap Feature Greatly Reduces Labor Scored Wings Ensure Flexibility In Placement Between Joists Wire Ties On All Four Corners Prevent Losing The Wires In The Walls