Safety color recognition plus high security.Available in six vibrant colors for easy lockout customization - add desired suffix - RED, ORJ,GRN, YLW,BLU,BLK.Baked-on powder-coated finish stays bright.Ideal for corrosive and tough environments.Tens of thousands of key changes available - restricted 400 series cylinder option at no extra charge.Rekeyable for easy key system maintenance.Key retaining optional - ensures that padlocks are not left unlocked.Photo I.D. labels available.