The SAS Heavy Duty Large Universal Box Eyelock is a robust lock constructed to prohibit unbolting the towing eye hitch from the drawbar.  

Strong 5mm thick steel.

High security steel encased lock.

Quick and easy to fit.

Excellent visual and physical deterrent.

Virtually indestructible.

Suitable for large plant trailers and towable agri equipment.  

One size fits most towing eyes.