The document discusses different types of plastic bottles. There are two main types of plastic used for bottles: polyethylene (PE) and polyethylene terephthalate (PET). PE bottles are soft and easy to squeeze while PET bottles are clear and hard. Different types of caps are used on bottles including child proof caps, tamper proof caps, and screw caps. Tips are provided on different cap styles like press-in tips, lock ring tips, and support tips. Various bottle styles are also described such as pen shape bottles, bottles with pipettes, and bottles with twist caps.