<ul><li>Patented bump resistant coil</li><li>48 key capacity</li><li>Includes key drop slot</li><li>3 – 8 digit programmable code</li><li>Uses 4 X AA batteries (Included)</li><li>Low battery warning</li><li>Pre-drilled holes with anchor bolts (Included)</li><li>Powder coated interior and exterior</li></ul>