Accuform Signs Stopout Look'n Stop compact group lock box. Box is durable, impact-resistant plastic. Small, portable group lock box goes with you on the job, from the office to the production floor. Set the group lock box on a desk, mount on wall or simply take with you on the go. Safely and securely stores keys from lockout. Specially designed lid hinges closed with a twist. Turn it 15 degrees for added security, prevents unauthorized pry access or tampering when padlock(s) are in place. With the holes lined up after close and turn, secure the box with up to 17 padlocks (sold separately). Once job is complete, the lid only opens after removal of the last padlock. Reverse twist lid to open and remove keys. Slots in lid to insert and store locked-out keys. Unique twist-to-turn lid for secure close. Inner pry-guard prevents tamper access. Lid has two see-through windows and carry handle. Octagon shaped box in red conveys the StoP message. Red color. Measures 7-3/4-inches width by 7-3/4-inches length by 4-inches height.