The Product Name:Bio Sponge Ball
Material: pp
Color: Black
Size: 16mm / 0.63 inches
Weight: About 1.1g
Packaging Includes: Bio Sponge Ball*100,One black mesh bag is included
Contains 100 filter biosphere, enough for you to use and replace, each biosphere diameter of 16mm / 0.63 inches;
Used as a filter material in biofilters, such as aquariums, fish tanks, ponds and other filter materials,provide good filtration and
beneficial biofiltration growth, remove odor, color, promote gas
exchange, and increase dissolved oxygen levels.
Note: Keep away from children and avoid swallowing danger.