Exterior box dimensions: 150x150x50mm
Interior max recomended dimension 104x104x40mm
Membrane boxes are tight containers that are fitted with two thin elastic membranes that wrap around the object and hold it firmly in place. Thin, thick, round, sharp, irregularly shaped, or even grain sized objects can be kept firmly in place with assurance of no movement.
The transparent boxes are made from clear polystyrene with a very stretchable polyurethane membrane. When the top and bottom of the box are brought together the membranes fit tightly around the object, holding it and protecting it from harsh movement or vibration. Because the membranes hold the object suspended in the center of the box, it can be viewed from both top and bottom.
Posted by Eugene on 26th Oct 2015
The quality of membrane boxes has remained constant over the past decade as a collector who uses all sizes extensively. In ten years, I have yet to see one fail (except for less expensive knockoffs with a high failure rate). Keep up the fine work!