50 (6x10) LongLife Aquarium Breathing Bag for transporting fish, shrimp and aquatic plants (by Kazen Aquatic) New technology for aquatic animal transportation, this breathing bag lets oxygen enter and carbon dioxide escape! This means there is NO need to fill with extra air or oxygen With thicker material and more resistant to tearing and pinholes than other brands. Tired of bags that have poor quality control and thin material that leaks under pressure? Try these bags These are the same bags that Kazen Aquatic uses for all live aquatic animal shipments. More resistant to dorsal spines and invertebrate claws than other breathing bags Does not require double bagging for most animals, unlike other breathing bags