Manufacturer: Cobra Key Systems Oversized Box Shipping UPS Only COBRA MECHANICAL KEY CABINETS Cobra Key Systems cabinets are constructed from .063 Aluminum which is rugged, lightweight, and rustproof. Cabinets are powder coated in a texture gray for easy cleaning. Cabinet doors can be mounted on either left, or right. Now available with electronic cabinet door lock (4 digit adjustable PIN code) $150 Upgrade  Never need keys again, adjust PIN code as needed with employee turnover or for security   C50 - 50 Unit with Locking Cabinet Dimensions Height: 32" Width: 17" Depth: 4" Layout: 5 x 10 Content 75 Key Holders 10 Access Keys 1 Master Key 50 Cobra-Tags (ID Tags)   Operating Manual Box Size: 23 x 38 x 9 Weight: 18.2 lbs Shipping Weight: 29 lbs How access keys work in the locking mechanism