Boxes are made from select maple, cherry or walnut hardwood, glass, steel, and stainless steel (ie, same as used in high end cooking pans) for the mesh screen and for some internal parts, acrylic (brand name Plexiglas) for the cover, and a stainless steel spring clip, used for the cover hinge. We apply one coat of odorless/food grade butcher block oil to the wood to slow discoloration due to handling. We have also added silicone rubber locking rings and (optional) battery pushback rings to make using and maintaining the Box easier.
The optional draw stem accessory (which is not necessary to use the Box) is made of borosilicate glass and wood versions are available.
There are no chemicals used for bonding—it is an aggregate physical process (specifically, there is absolutely no solder and no lead). Magic-Flight has made all possible efforts to ensure/guarantee the complete and total health and safety of this device. There are no hazardous materials used.
Overall, the Box is very durable (can be dropped without harm, etc). The only part which is more delicate is the internal screen which is very thin—use only the provided brush as a tool in direct contact with the screen. If the screen becomes damaged (whatever the reason) Magic-Flight will send a replacement Box unit (it's part of the warranty—the screen itself is not end-user replaceable).
The Box is durable and practical as well as safe.