Good for keychains - Nite Ize S-Biner Versatile Carry Biners

These are small biners and not very durable for heavy loads. I bought the smaller ones, and they're good for keychains if you need to separate your rings and be able to remove them quickly and easily. Or if you need to clip them on some 550 cord on your vest or bag to carry keys or some other lightweight items, they'd work for that too. Nothing heavy.