As part of Button Works Black Line is this Military Spec Key Holder. Featuring a Dahl black finish, commonly used in US military gear, and a military spec hook, originally created by Button Works for rifle slings. The Buttero leather is hand-stitched with waxed thread and the metal parts will change with use.

- Button Works Black Line Military Spec Key Holder in Black.
- Dahl Black finish.
- Flat Double ring.
- Rifle sling military spec clasp.
- Black Buttero leather.
- Button Works pressed logo.
- Brass Button Works logo pendant.
- Made in Japan.