Which is better, this or a boot for a trailer?

This is pretty good, fits any receiver and is sturdy. I also have a boot, one that clamps on each side of the wheel, so much easier to use than the so called Denver Boot. If someone wants your trailer bad enough locks and boots won't make any difference, but it sure will slow them down.

Are the keys universal or unique to each lock?

The keys are unique to the lock. I ordered the 4 pack. The keys for one lock only works on that lock.

Will this lock work on a gooseneck trailer 2 5/16 hitch receiver?

Yes, it works on mine, and the description of it states the sizes it will fit.

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🔐 Lock in peace of mind, tow with confidence!

BOLD RED DETERRENT - Bright finish that screams 'Hands off!' to thieves
NEXT LEVEL SECURITY - Advanced locking mechanism designed to resist picking and prying
QUICK INSTALL REMOVE - Streamlined design for fast, tool-free setup and removal
UNIVERSAL FIT ZERO HASSLE - Secures virtually all standard trailer couplers effortlessly
BUILT TO BRAVE THE ELEMENTS - Durable rust and corrosion resistance for long-lasting protection

The Master Lock 379ATPY is a robust, universal coupler lock designed to fit most trailer hitch sizes from 1-7/8" to 2-5/16". Featuring a vivid red finish to deter theft, it boasts an advanced locking mechanism resistant to picking and prying, plus rust and corrosion resistance for reliable outdoor use. Lightweight and easy to install, it’s the essential security upgrade for any trailer owner.

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₱6014

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Manufacturer	Master Lock
Brand	Master Lock
Model	379ATPY
Product Dimensions	9.14 x 19.3 x 17.02 cm; 453.59 g
Item model number	379ATPY
Exterior	Chrome
Manufacturer part number	389DAT
Special Features	Advanced locking mechanism, Resists picking and prying, Rekeyable
Item Weight	454 g

Master Lock 379ATPY Automotive Towing, Red, 1 Pack

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