This pack of 4 Yale padlocks is designed for indoor use, perfect for securing gym lockers, toolboxes, or any belongings you want to keep safe indoors. Each padlock features a brass construction with a steel shackle and comes with 3 keys. The set includes 4 padlocks, each with a 15mm shackle. These padlocks have been tested for corrosion resistance up to 48 hours. The body dimensions are 20mm height, 19mm depth, and 13.3mm width, with a shackle diameter of 2.8mm. The weight of each padlock is 75g.