| Brand | Master Lock |
|---|
Check the listing for details. Master Lock Cargo Trailer Coupler Lock Model 377 With Key Used Works Nicely. Condition: Used. Listed at 18.99 USD. It’s a model number 377… If you look up that number, you will find out how big the ball is and all that because I’m not an expert. This was my grandfather‘s item. This item works smoothly, but it is in used condition.
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