• Stainless steel outside around steel inner case
• Nickel plated steel shackle; 3⁄4˝ vertical clearance
• Master key assures instructor control of all locks
• Control chart included with each installation
• 3-number dialing; 3⁄4˝ vertical clearance
• Masterkeyed, Master Key sold separately item 51-0000
• Minimum purchase 12
