CrossCore Single User Wall/Ceiling Mount Great for creating an anchor point from a ceiling beam or wall beam when nothing else is available. Base is made from 1/4" steel plate and measures 3" x 6". Includes four bolt holes for better versatility when mounting. Includes (2) 3/8inch x 3inch wood lag screws and (2) washers Always read the included Ceiling/Wall Anchor instructions BEFORE using. All Ceiling/Wall Anchors MUST Be Bolted To Ceiling/Wall Studs ? Professional Installation Recommended.Limited One Year Warranty