As far as I know, plastic is a synthetic material, that uses polimers as a main ingredient. Plastic is able to be shaped or formed any forms. There are 7 main types of plastics inluding PET, HDPE, PVC, LDPE, PP, PS, orther plastic. But the most popular plastic is PET. PET plastic is made of polyethylence terephthalate. PET is widely used because it has some properties as oxygen prevention, widely recycled and it is safe for health of users. It mostly used for food and drink containers and medical applications bsecause oxygen prevetion property help them don’t react with air, water or some various chemicals. Beverage bottles are among the main plastic items that use PET, this plastic is safe for user’s helth. Also, PET bottles are the most easily recycled plastic in the world. they will be recycled and remanufactured into new products. Plastic are a useful and important material with life and production. but beside that, using much plastic everyday, we may face a lot of plastic problems and we need to solve them.