Middle Atlantic REB18 This REB-18 18" Deep Rotating Sliding Base from Middle Atlantic is a slide-out and rotating equipment base designed for use with small cabinets and entertainment centers. Use this convenient unit to house your audio-video equipment and gain easy access to without having to remove any of it from its place. Simply pull out the base on its slide and rotate the base to gain full access to the rear panels of your equipment, any cables, or connections.