Keychains are small and decorative accessories, typically attached to keys, purses, or bags, and can also be used as decorative elements for various personal items. They can be made from various materials, such as metal, plastic, or leather, and come in a wide range of shapes and designs, from simple forms like circles or rings to fun figures, characters, or thematic symbols. Keychains are often personalized with messages, names, or images and can also serve as souvenirs or gifts. As both practical and aesthetic accessories, keychains add a touch of style and personality to the items they are associated with.