Product Features: ProSeries resettable combination locks are designed for Commercial/Industrial applications Set-your-own 4-digit combination for convenience and security; 10,000 possible combinations No reset tool required Large ergonomic dials with exclusive blind feature permit operation with gloves, in low light or complete darkness Deadlocking mechanism protects against prying, shimming and rap attacks Shackle seal and dial dust cover protect internal components and dials for trouble-free operation 2-1/4" (57mm) wide solid brass body for superior corrosion resistance 1-1/16" (28mm) octagonal boron-carbide shackle for excellent cut resistance Best Used For: Utility Meters, Substations Cable Boxes Construction Sites Equipment Industrial, Storefront Business Gates Manufacturing Environments