MasterLock One Flexible Combination Shackle Lock - Assorted Colors (Blue, Red, Silver, Black) - Model 4688D

The Master Lock One Flexible Combination Shackle Lock is a TSA-approved travel and range-bag security solution designed for hunters, shooters, and outdoor enthusiasts who need reliable, hassle-free locking without fumbling for keys. Model 4688D combines a durable metal body with a flexible braided steel shackle to withstand the rigors of baggage handling, truck beds, and field use. The self-setting combination dial gives you peace of mind whether you're locking down checked luggage at the airport, securing gear at camp, or protecting equipment in your truck bed.

Built for real-world abuse, this lock features a vinyl-covered flexible cable shackle that resists damage from rough handling and weathering. The 1-3/16-inch wide metal body provides solid construction, while the 1/8-inch diameter shackle is rated for 1-1/2 inches of reach—enough for most bags, soft cases, and cable routing. Because it's TSA-accepted, security screeners can open and inspect your locked bags without cutting the lock, then resecure it. That's a genuine advantage over a standard padlock when flying with gear.

Setting your own three-digit combination takes seconds and requires no tools or key management. Once you've dialed in your code, you've got a lock you'll actually remember without writing it down. Available in blue, red, silver, and black, it's functional enough for serious field use but colorful enough to spot quickly in a gear pile or travel bag.

Key Features

• TSA-accepted design—screeners can inspect without cutting
• Set-your-own three-dial combination—no keys to lose
• Flexible braided steel shackle with vinyl covering resists weather and rough handling
• Durable 1-3/16-inch metal body built for repeated use
• Available in four colors (blue, red, silver, black)

Specifications

Model	4688D
Body Width	1-3/16 inches (30mm)
Shackle Diameter	1/8 inch (3mm)
Shackle Length	1-1/2 inches (38mm)
Shackle Type	Flexible braided steel with vinyl covering
Combination Type	3-dial self-setting
TSA Approved	Yes
Available Colors	Blue, Red, Silver, Black

Frequently Asked Questions

Is this lock TSA-approved for air travel?

Yes. The Master Lock One 4688D is TSA-accepted, meaning security screeners can open and reinspect your bag without cutting the lock, then resecure it for you.

Can I set my own combination, or does it come with a preset code?

You set your own three-digit combination. There are no keys to carry or lose.

What's the shackle length, and will it fit my bag or case?

The shackle is 1-1/2 inches long, suitable for most luggage zippers, soft rifle cases, and cable routing on backpacks and gear bags.

Will this lock hold up to weather and outdoor use?

The shackle is vinyl-covered flexible braided steel, designed to resist damage from weather, baggage handling, and field abuse. The metal body is built for durability in tough conditions.