






🔐 Lock in peace of mind with Proven Industries’ ultimate trailer defense!
The Proven Industries Model 400XL Puck-Lock Set is a pack of three heavy-duty, aircraft-grade aluminum locks designed specifically for securing enclosed trailer doors. Featuring a hidden, fully shielded shackle and a unique anti-copy key system, these locks offer superior protection against theft, picking, and corrosion. Made in the USA, they combine robust security with convenience, making them the go-to choice for professionals who demand reliability and peace of mind.






| Brand | Proven Industries |
| Special Feature | Key Lock |
| Lock Type | Key Lock |
| Material | Aluminum |
| Recommended Uses For Product | Securing enclosed utility-trailer doors and personal possessions |
| Style | Modern |
| Color | Blue |
| Number of Pieces | 3 |
| Included Components | 3 locks |
| Controller Type | Hand Control |
| Shape | Rectangular |
| Control Method | Touch |
| UPC | 729573594777 |
| Manufacturer | Proven Industries |
| Part Number | 400XL |
| Item Weight | 3.16 pounds |
| Package Dimensions | 6.81 x 3.31 x 3.23 inches |
| Item model number | 400XL |
| Item Package Quantity | 1 |
| Type of Bulb | lock |
| Special Features | Key Lock |
| Batteries Included? | No |
| Batteries Required? | No |
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