Crush Resistant And Durable: These Four Silver Sliding Aluminum Boxes Are Made Of Sturdy Metal Metal Materials Are Corrosion Resistant Wear Resistant And Pressure Resistant Making The Metal Box Highly Durable And Pressure Resistant Protecting The Contents Inside From Damage And Allowing It To Be Used For Many Years Safety And Convenience: The Sealing Performance Of Metal Boxes Is Usually Very Good Safe And Reliable And Can Effectively Prevent Moisture Dust And Gas From Intruding Into The Box This Sealing Property Allows The Metal Box To Protect The Items Inside From The Outside Environment And Keep The Items Dry And Clean Easy To Carry: Each Box Is Small Enough To Fit In A Purse Backpack Or Luggage Making It Easy To Carry Essentials For Use Anytime Anywhere Color: Silver