7 1/2 H 6 1/2 Opening Integral Thermal Protected Air Tite Recessed 6 Halo Housing For Insulated Ceilings & Direct Contact With Insulation For Use In 2 x 8 Joist Construction Adjustable Socket Bracket Junction Box Listed For Through Branch Circuit Wiring 7 Each 1/2 KO s 4 Each Romex KO s With Pry Out Slots & Strain Relief Plaster Frame With Locking Screw For Hanger Bars Adjusts For Ceiling Thickness Pre Installed Captive Nailless Bar Hangers To 24 Joist Span Bar Hangers Can Be Repositioned 90 ree. Without Tools Hangers Fit T Bar Spline Damp Location Feed Through IP Rated UL CSA Meets State Of Washington Restricted Air Flow Requirements UPC ed Bulk. This product adds a great value. product is highly durable and very easy to use. This product is manufactured in China.