Designed by safety directors specifically for OSHA lockout compliance - 1 3/4" tall . Durable, lightweight, non-conductive xenoy lock body. Customize on-site with permanent, write-on labels. Compliance with OSHA " One Employee, One Lock, One Key" directive. High security, reserved-for-safety cylinder - Up to 100,000 key changes. Key retaining - Ensures that padlocks are not left unlocked. Eight Colors Available - Add Desired Suffix - RED, YLW, BLU, GRN, BLK, ORJ, PRP, TEAL .