Special care and attention is committed to the construction of these museum quality crates: they are customs built to meet the specific characteristics of artworks and they are composed by various levels of protection: a first level, the external one, is made to protect the artwork from all elements and from every kind of hit; it’s a wooden kind of strong shell, in a way, which is meant to be resistant and reliable. It embraces a medium level which is made to create the most comfortable bed for the artwork to be packed: special foam materials create the perfect surrounding for the piece to transport. The last level, the internal one, is extremely important because it is close to the artwork and, due to this, it must represent the safest element involved. Chemically neutral materials are always used: museum usually prefers Tyvek, Tissue paper and glassine. The crate is then completed by adding ‘air stop’ neoprene gaskets, external handles to correctly move it and it is subject to fireproof treatments to offer maximum protection and waterproof treatment to prevent moisture. Crates can be completed with special interiors like separators, trays, drawers, etc.