The Blue Dot Safes SS and ST Series safe deposit boxes are UL-listed institutional security units featuring aluminum alloy doors and frames with rust-resistant steel cabinets — offering reliable safe deposit functionality in a cost-effective modular format. Available in multiple door configurations including 3″×5″, 5″×10″, and 10″×10″ door sizes, across 10-door to 30-door unit counts. The SS Series (full-width) and ST Series (narrow) allow flexible vault room configurations. Both carry UL-listed double-key changeable locks. Browse all models below or call (866) 747-7233.