What’s it used for? - Moisture and condensation reduction in Shipping containers, Caravans, Garages and Storage units 
What’s it made of? - Calcium chloride and Plastic 
How does it work? - Remove the packaging, connect the hook to the top of the container guard unit and hook over a container lashing ring. 
Design - The Container guard is designed to save space by fitting neatly within the shipping container side wall corrugations