The O-ring hooks

The small piece of hardware that makes everything else work together.

Clip your pockets to each other so the set travels as one. Attach your keys to a tether. Hook a pocket onto the inside of a bag so it stops migrating to the bottom. Add a lanyard to your phone. It is one ring, and it does whatever the day needs it to do.

Small. Sits on a key ring without adding bulk.
Medium. Clips a tether around a handbag handle.
Large. Attaches to a pocket so it hangs from a hook.

Solid metal in bright polished silver, smooth action, and small enough to forget about until the moment you want it.

Sold in pairs, or as a set of all three sizes.