• Designed by safety directors specifically for OSHA lockout compliance• Durable, lightweight, non-conductive Xenoy® lock body is easy to carry• Customize on-site with permanent, write-on "danger" and "property of" labels• High security, reserved-for-safety cylinder - up to 100,000 key changes• Compliance with OSHA "one employee, one lock, one key" directive• Laser engraving service available for an additional charge• Key retaining - ensures that padlocks are not left unlocked• Shackle Dimension A: 1/4 inches (6 mm)• Shackle Dimension C: 25/32 inches (20 mm)• Color: Red