This affordable time saver is a must have when installing speakers into new construction, whether it be an entirely new house, business, or your home theater project. Made from ABS, this bracket works perfectly with joists spanning 12.5" to 29.0". The snap-away wings make it easy to mount your speaker first to the bracket itself, then between the studs. Use the speaker clamps built into the ceiling speakers to attach the bracket, it's just that easy. It can be attached using nails, dry-wall screws, or construction staples (not included).