Natural Sea Sponge, great for using to maintain humidity in terrariums. Hermit Crabs love these sponges, they are capable of drinking from it (though you should still provide a freshwater, and saltwater dish for them) Natural Sponge, no chemicals or artificial components.
Sponges are about 1 1/2" - 2" long. Each sponge will be a different shape, as these are real sea sponges.
