The MasterLock 4688D is a TSA-accepted combination padlock designed for securing firearms cases during air travel.
- Type: TSA-Accepted Combination Padlock
- Combination: 3-Digit Resettable
- Body Material: Zinc Alloy
- Shackle Material: Hardened Steel
- Color: Blue
- Intended Use: Airline travel, firearms cases, luggage
- TSA Compliant: Yes
