These Carabiners can be used for a variety of things keychains, hiking, fishing and more. I'm using mine to attach to water bottles that my family has so they can easily attach them to backpacks, luggage, lunchboxes, bikes, and even camping and beach gear. This will make them easier to carry. You receive a pack of 10 in a variety of colors at an affordable price. These Carabiners are durable, sturdy and well made. They are available on Amazon so order some for all your needs.