Our main wish behind this product was to create a highly personalized holder, which can be customized due to the personal taste of each client. As the holders are meant to be used with different products like keys, bags, backpacks, wallets, etc., we used a range of different hardware to match each item as close as possible. Our keyrings go in two sizes: small one best for 1,2 Keys, big one best for 3-6 keys. Carabiners in different shapes to better clasp to your bag or backpack and different colors for a perfect match to your bag's hardware. We hope the range is wide enough to fit different needs, and if not, let us know, we are making also custom products.