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Master Lock Directional Combination Lock, Set Your Own Directional Lock, Combination Lock for Gym and School Lockers, 1500iD Colors May Vary

Master Lock Directional Combination Lock, Set Your Own Directional Lock, Combination Lock for Gym and School Lockers, 1500iD Colors May Vary

Q: How many combinations are possible? (i.e., how many stops for each wheel inside?) 10 stops/wheel would be like a 4-digit combination lock. Is that so?

Although there are infinitely many sequences you can set as the combination, the lock has only 7,500 internal positions, not counting the reset position. This means that if you set a particular sequence to open the lock, there are infinitely many other sequences that will also open the lock. For example, if you set the combination to LURL (left-up-right-left), the lock will also open with the sequence RLL. Some people consider this a bug or defect, I think it is simply a technical aspect that is not disclosed to consumers because the mechanical explanation is too complex for the average consumer. This technical paper by a lock collector in the Netherlands has a more detailed mathematical explanation https://toool.nl/images/e/e5/The_New_Master_Lock_Combination_Padlock_V2.0.pdf . One of the interesting takeaways from this paper is that every sequence longer than 11 moves is equivalent to some sequence of 11 or fewer moves. So it does not make any sense to torture yourself to remember a 12-move or 13-move sequence. For instance, UUUURRRRDDDDD is the same as LLURD.

Q: My granddaughter is legally blind. Do you have a blue padlock? The reason I ask is because she can't see most colors on white. Same problem with black

In my opinion, the Blue is the worst for visibility. The stickers are dark blue with black text - almost impossible for me to read except under a bright light. However, the great thing about these locks is that once you remember the sequence you don't have to be able to read the sticker labels. Also you can choose a simple sequence or a more difficult one. For my work locks I use an eight movement sequence. For my son's lock I use a four movement sequence. I love these locks.

Q: Does this only do four directions? Or can it do more? I need one that allows the combination to be five.

If I understand your question: it only allows four directions (up, down, left, right.) But what I think you're getting at is how many steps you can add. In that case, you can enter pretty much as many steps as your like (Gismodo used 30 steps successfully). Personally, I've set mine for eight, giving 1:65,563 odds (and that's only if a stranger knew that I had used eight, which they wouldn't.) If you want to use five, that's fine, and will give the odds of 1:1024 (assuming it was publicly known that you only used five steps.)

Q: I would like a blue Speed Dial Masterlock. The description indicates that the colors are selected randomly at the time of shipment??

If you place your order before 2pm, send us an email with your order number and I'll go back to the warehouse and make sure you get the blue one. Thanks for choosing Home Network Supply!

4.0/5

Product ID: 2378578

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Details

Brand
Master Lock
Special Feature
Keyless
Lock Type
Combination
Item dimensions L x W x H
1.13 x 2.13 x
Material
Metal

🎯Directional combo input for lightning-fast access

🔒Hardened steel shackle for max cut resistance

🛡️Anti-shim locking mechanism for ultimate security

Description

🔐 Unlock Speed & Security with Directional Precision!

ANTI SHIM TECHNOLOGY - Advanced locking mechanism blocks shim attacks, keeping your belongings safe and your mind at ease.
COMPACT YET POWERFUL - Sleek 1.13 x 2.13 x 3.88 inch design fits perfectly on any locker without bulk, combining style with security.
LIMITED LIFETIME WARRANTY - Backed by Master Lock’s trusted brand promise—security that lasts as long as you need it.
SET YOUR OWN DIRECTIONAL COMBO - Customize your lock with intuitive up/down/left/right inputs for rapid, stress-free access—no more forgotten combos!
RUGGED METAL BODY HARDENED SHACKLE - Built tough with a 54mm polished metal body and 6mm hardened steel shackle to withstand daily gym and school locker battles.

The Master Lock 1500iD Directional Combination Lock features a durable 54mm metal body and a hardened 6mm steel shackle, enhanced with anti-shim technology for superior protection. Its patented directional input system allows faster, easier combination entry using up/down/left/right movements, making it ideal for gym and school lockers. Compact, keyless, and backed by a limited lifetime warranty, this lock blends modern security with user-friendly innovation.

Specifications

Brand	Master Lock
Special Feature	Keyless, Padlock
Lock Type	Combination Lock
Item dimensions L x W x H	1.13 x 2.13 x 3.88 inches
Material	Metal
Recommended Uses For Product	Security
Style	Modern
Number of Pieces	1
Finish Type	Polished
Included Components	1
Controller Type	Hand Control
Shape	Rectangular
Control Method	Touch
UPC	071649114694
Model Name	Locker Lock
Global Trade Identification Number	00071649114694
Manufacturer	Master Lock
Part Number	1590ID
Item Weight	5.9 ounces
Product Dimensions	1.13 x 2.13 x 3.88 inches
Item model number	1500iD
Is Discontinued By Manufacturer	No
Size	1 Pack
Finish	Polished
Item Package Quantity	1
Measurement System	Metric
Special Features	Keyless, Padlock
Batteries Included?	No
Batteries Required?	No
Warranty Description	Limited Lifetime Warranty

Have a Question? See What Others Asked

How many combinations are possible? (i.e., how many stops for each wheel inside?) 10 stops/wheel would be like a 4-digit combination lock. Is that so?

My granddaughter is legally blind. Do you have a blue padlock? The reason I ask is because she can't see most colors on white. Same problem with black

Does this only do four directions? Or can it do more? I need one that allows the combination to be five.

I would like a blue Speed Dial Masterlock. The description indicates that the colors are selected randomly at the time of shipment??

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TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

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Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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€ 53.09

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

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Very reliable shop with genuine products. Will definitely buy again!

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