No pollution to our circumstance. 

These bags are used for filling with 1-3 mixture of tea or dry herb or plants.
High strength, good toughness and heat resistance.
Non-toxic and safe to our body.
As the small bag boil proof and the material is thin, effectively maintaining the original flavor to make the delicious broth.
These teabags are manufactured to the highest quality. You do not need to heat them to seal, just pull the string and tie a small knot.