In-depth review
Forge Open Alert Cable Locks 4 Pack Review (2027)
The Forge cable four pack brings a search alert indicator to flexible cable locks. Our research verdict on the cable family pack.


Forge Open Alert Cable Locks, Black, 4 Pack
The flexible answer to awkward zipper pulls: four black cable locks with a search alert indicator.
Our verdict
The Forge cable four pack is the answer to the most common fit complaint in this category: a shackle that will not thread a slim zipper pull. Four black cable locks with braided steel cables and a search alert indicator cover a family or a set of bags, and the indicator gives cable buyers the inspection information that shackle buyers take for granted. The cable is a deterrent rather than a barrier, and a dangling loop can snag if left long, but those are cable locks' shared limits, not this pack's faults. For bags that defeat shackle locks, this is the pack to buy.
What we like
- Braided steel cable threads through zipper pulls and loops that reject a rigid shackle
- Search alert indicator flags a screener inspection, like the shackle set in this guide
- Four black locks cover a family trip or a set of bags without buying twice
- Alloy body keeps the lock light enough to leave on a bag between trips
What to watch out for
- A cable is easier to snip than a steel shackle, so this is a deterrent, not a vault
- Cable locks can dangle and catch on conveyor belts if the loop is left long
- Resetting the code needs the maker's steps followed in order, and rushing it causes confusion
What owners report: Forge Open Alert Cable Locks, Black, 4 Pack
Synthesized from recurring themes in long-term owner feedback.
Most praised
- Owners say the cable finally solved bags whose zipper pulls defeated every shackle lock they owned
- The black finish gets called out as the pack that does not clash with any bag colour
- Travellers who lock backpacks and gym bags as well as suitcases like having spares in the pack
Common complaints
- Some owners wish the cable were longer for looping through two zipper pulls at once
- A few report the cable end fraying where it meets the body after heavy use
- Owners note the lock body can swing and tap against a hard case in transit
Who it is for
Families and multi-bag travellers whose bags have slim pulls, loops or hasps that reject rigid shackles.
Fit is the feature
A cable lock's value is measured in bags it fits that other locks cannot. Slim zipper pulls, fabric loops, backpack hasps and gym bag closures all accept a braided steel cable where a rigid loop fails, and that fit difference is worth more than any dial or finish detail. Owners in this guide's reports keep returning to the same story: the bag that defeated every shackle lock finally locked with a cable, and the trip went on.
The indicator closes the information gap
Cable locks have historically lacked inspection indicators, leaving cable buyers to guess whether a bag was opened. The search alert indicator on this pack closes that gap: a screener opening shows up, and the traveller checks contents while still at the airport. It is a small red signal with a large practical effect, and it lifts this pack above indicator-free cable rivals.
Managing the cable
A cable lock needs a habit that a shackle lock does not: loop the cable short, so nothing dangles to catch on a conveyor belt or a strap. A loop left long is a snag waiting to happen, and a cable end left swinging taps against hard cases in transit. Loop it tight, test the closure, and the cable's flexibility becomes pure advantage.
Key specifications
- Lock type
- Resettable combination, cable
- Cable
- Braided steel cable
- Body
- Alloy body
- Indicator
- Search alert indicator
- Pack
- 4 locks, black
- Acceptance
- TSA-accepted
Also consider
Forge Open Alert Shackle Locks, 4 Colours, 4 Pack
The family pack benchmark: four 3-digit shackle locks in four colours, each with a red inspection indicator.
Why consider it: The shackle version of the same pack idea, for bags whose pulls accept a rigid loop
- Lock type: 3-digit resettable combination
- Body: Zinc alloy
SURE LOCK Cable Locks with Open Alert, Purple, 2 Pack
The easy-read cable pair: large dials, a purple finish and an indicator that shows inspection.
Why consider it: The easy-read cable pair, for travellers who want larger dials
- Lock type: 3-digit resettable combination, cable
- Body: Zinc alloy
Research-based assessment. TrueGear has not hands-on tested this product; this evaluation synthesizes manufacturer specifications, retailer documentation, and published expert reviews.
Questions, answered
Will the cable fit my backpack?
Very likely: backpack loops, zipper pulls and hasps are exactly the fittings a braided cable is made for. Test the lock on the actual bag before travel, as with any lock.
How do I stop the cable snagging?
Loop it as short as the job allows, with no dangling excess, and tuck the body against the bag. A short, tight loop cannot catch on a conveyor belt the way a long loop can.
Is four locks too many?
For one bag, yes, and a single or pair from this guide suits better. For a family or a set of bags, four is the first pack size that usually covers everything, including a backpack or gym bag.
Every guide on Luggage Locks16 pages
- Topic hubLuggage Locks
- Best ofThe Best Luggage Locks (2027)
- Checked bags face two threats a carry-on never meets: a screener who may need inside, and a conveyor system that tests every dangling part. This ranking therefore weights TSA acceptance first, then inspection indicators that report an opening, then a shackle or cable that will not snag. Carry-on-only locks with no inspection story do not belong here, even if they are well made.The Best Luggage Locks for Checked Bags (2027)
- Cable locks exist because shackle locks do not fit every bag. This ranking starts from fit: which pulls, loops and hasps the cable can thread, and whether the length joins one pull or two. Length is then judged as a trade-off, since a long cable that is not managed snags, while a short cable cannot join distant pulls. Indicators and opening type decide the order within each length class.The Best Cable Luggage Locks (2027)
- This ranking is for travellers who have decided that a pure combination lock is not for them, either because codes get forgotten or because keys feel simpler. Within that group, the split is between pure keyed locks, which are simplest but punish a lost key, and dual-opening locks, which forgive both a forgotten code and, with a spare key kept safe, a lost code. The ranking rewards forgiveness: the lock that leaves the fewest ways to be locked out of your own bag wins.The Best Keyed and Dual-Opening Luggage Locks (2027)
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- Buying guideLuggage Lock Buying Guide (2027)
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