ASQ1035: Features: -(4) 8-32 J-clips included for screw mount baffles. -Eliminates the need for tile bridges and screw mounting. -Patented enclosure / rail system installs easily. -4 Compound combination knockouts (0.5" to 0.75") spaced 90 degrees apart. Product Type: -Ceiling speaker mount. Color: -Black. Generic Dimensions: -For 8" loudspeakers. Dimensions: Overall Height - Top to Bottom: -4.5 Inches. Overall Width - Side to Side: -9.88 Inches. Overall Depth - Front to Back: -9.88 Inches.