The clam Jammer is a great utility rack For any Reef tank. With the ability to hold clams, anemones, Torches and MORE!!!    Measurments : 6 1/2 inches Long,  4 3/4 inches wide and 1 1/2 inches tall.  *** Inside Bowl diameter is 3 3/4 Long, 1 3/4 wide and 3/4 inch Deep.