This item is for any of our corals to fit in as long as the coral is not too big for this base. It measures 6.5" long by 5" wide by approx. 2" tall. there is a predrilled hole for plugging the item into. The coral will have a plug in it when you purchase this base in addition to the coral item. we can make the base in any color. The coralline purple color may vary as we make them with more of a purple tone and sometimes a dark magenta tone. Thanks