Two designs are available. Cases with snap hookshold several keys that can be removed individually — practical if your house, office, and car keys need to go separate ways. Cases with a key ringhave a simpler construction and are therefore slimmer.
Some models also feature a slip or zip pocket for a banknote or a card. The leather is nappa leatheror vegetable-tanned cowhide; the latter darkens over time and feels softer with every passing month.
Also small and suitable for everyday use: card casesand the other accessories.