The Master Lock 503RED Wall-Mounted Lockout Box offers secure and efficient key management with integrated storage for up to 12 keys or hundreds of bulk keys. Designed for safety, it accommodates up to 14 personal padlocks on its exterior, with the option to increase capacity using lockout hasps (sold separately). Its compact dimensions (169 x 324 x 89mm) make it ideal for organized, accessible lockout/tagout procedures in professional environments. Dual application - wall mount or portable