5.Removable square sponge 3 It is specially designed to protect equipment, instruments or other objects, effectively waterproof and not affected by external or 2 It adopts shock-resistant and compression-resistant ABS engineering plastics and hardware stainless steel and other accessories There are buffer rubber anti-skid pads inside, which can be easily and freely loaded and unloaded The overall opaque design effectively prevents light penetration and erosion 4.Suitable for loading small and electronic equipment It can well protect the built-in equipment from being cut by for stones and rock in the wild, and is waterproof, shock-proof and dust-proof 1 A waterproof for case / box that can be used in all weather and any environment, easy to carry in outdoor activities, and easy to operate