Features:

• Lock can NOT "pop" open
• Lock can NOT be false locked
• Made of high quality, forged hardened steel with rugged black epoxy powder coat
• The 5/8" pin fits all Class III, IV and V receiver hitches, fits up to a 2-3/4" span
• Protective rubber cap protects keyhole from water, grime and dirt
• Type A key which is a spring loaded, 7 pin, high security key. Resists attempted drill outs. Rugged and durable, the key will not bend or break.
• Strongest locking pin on the market
• 1/4 turn locks and unlocks head
• O-ring keeps water, grime and dirt out of locking mechanism to ensure years of use
• O-Ring seal and water tight cap help seal out dirt and corrosion