These virtually indestructible boxes are used for various things by the British Military, these particular boxes were used as Night Vision Goggle boxes.
This box is waterproof, heat proof, cold proof and just about bomb proof. They will give years of service as a geocache. The box is locked by two twist keys that clamp the box closed for a very good seal.
Each box weighs approximately 2.5kg. This can be reduced by removing the foam inserts from the box (takes about 1 minute using a knife).
Size: 360mm x 260mm x 150mm (sizes are approximate)
Available in any colour as long as it is green.