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 dial 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 shrouded solid brass body for superior corrosion resistance. 1-1/16" (28mm) octagonal boron-carbide shackle with shrouded feature for maximum cut resistance.