U. S. Government $$ issue - sensitive and Precision instrument case. Used for missile guidance systems Built for high impact, shock proof, waterproof, floats. Filled with removable closed cell foam that be can be cut to match anything you would like to put in it. Secure it protect it tough Strong super sensitive instruments fragile instruments delicate instruments. Weapon/gun storage breakables ultra precision and precise tools.It can also be padlocked.21 x 13 x 8 inside diameter. Brand new never used!