No hinge. No screw. No spring. One black ring holds it, moves it, and brings it back.
The mechanism turned inside-out: jaws that rest closed, tails you squeeze to open. One ring fits both.
| Length | 102 mm |
| Visible | Two boards, one ring |
| Inside | A steel ball. Two magnets. |
| Holds | A bag. A note. A cable. |
| Screws | None |
| Length | 280 mm |
| Opening | 38 mm |
| Parts | Two boards, one ring |
| Hardware | None |
| Ring | Replaceable — any band fits |