Bottle accessories are items designed to enhance the functionality and convenience of bottles. Common accessories include bottle caps, straws, and carriers, which help in sealing, drinking, and transporting beverages. These accessories can be made from various materials, such as plastic, silicone, or stainless steel, catering to different needs and preferences. Additionally, some bottle accessories focus on maintaining the temperature of liquids. For instance, insulated sleeves and coolers help keep drinks cold or hot for extended periods. Other accessories, like cleaning brushes and filters, ensure that bottles remain hygienic and free from contaminants, promoting better health and safety.