For over a century, Opinel has been making iconic everyday carry folding knives -- and each feature the brand's signature silhouette. The No. 04 keychain version is no different, boasting a Sandvik stainless steel blade mated to a handsome beech wood handle. This non-locking folder also features a nail nick on the blade for easy manual deployment, as well as a metal chain and keyring for easy keychain attachment. For its size and affordability, this remarkably small utilitarian cutting tool is a handsome and reliable addition to any everyday carry loadout.