The DarkVault® Comms Critical Gear Case keeps essential gear safe. Secure your phone, navigation, communication, or maintenance gear inside with Velcro®, then close the case and mount it to the outside of a chest rig or backpack. This works best when your gear is also backed with Velcro (hook Velcro, not provided). If you are looking with a case with a dedicated spring-loaded phone mount, see the DarkVault 2.0 Critical Gear Case. The DarkVault Critical Gear Case was developed with input from active-duty military and federal law enforcement. They wanted professional-grade levels of protection while keeping gear immediately accessible for navigation and communication tasks. Our original DarkVault was manufactured in a blocking version when first released. However, this model has been discontinued. The original DarkVault Critical Gear Case is no longer offered in a blocking version, but the DarkVault 2.0 has both blocking and comms (non-blocking) versions. DarkVault Comms cases are not rated for prolonged submersion or diving. Compatible phones are listed. Case dimensions: 7.2 x 5.43 x 1.67 inches DarkVault with mount (exterior), 6.70 x 3.95 x 1.15* inches DarkVault interior (*maximum depth). Attach hook Velcro (not provided) to the back of your device to secure it to the inside of your case's loop Velcro (provided). If you are looking with a case with a dedicated spring-loaded phone mount, see the DarkVault 2.0 Critical Gear Case.