The honeycomb is famous as the king of natural sea sponges. Honeycomb sponges combine an extraordinary soft and smooth surface with a very durable quality. diterranean sea in depths of 15 to 60 meters. Professional divers harvest the sponges by hand-picking them from the ocean floor. The honeycomb sponge grows at a rate of 1 to 1.5 inches per year. This very slow growing process enables the sponge to build its exceptional fine and soft, yet very durable fibre structure. Due to its exceptional superior natural quality the honeycomb is the most expensive type of sea sponge available in the market. Bulk (compressed in bales) or in carton boxes