Padlock application: for indoor and outdoor use; best used for construction sites and equipment, manufacturing environments, industrial, storefront and business gates, utility meters, substations and cable boxes Ease of use: resettable 4 dial combination for keyless convenience, set and reset your combination allowing up to 10, 000 personalized combination codes, no reset tool required; large ergonomic dials with exclusive blind feature permit operation with gloves, in low light, or complete darkness Durable design: security padlock has a stainless steel body for extreme corrosion resistance, a stainless steel shackle with a seal and dial dust cover to protect internal components, and a deadlocking mechanism to protect against prying, shimming and Rap attacks Specifications: 2-1/4 in. Wide lock body; 5/16 in. Diameter shackle with 1-1/16 in. Length, 1 in. Width Octagonal boron carbide shackle for superior cut resistance Dead locking mechanism protects against prying Shackle seal and dial dust cover protect internal components 10,000 possible combinations Large, ergonomic dials permit operation in low light