“Pontorno” tube boxes are made from Duralong Wave archival micro corrugated board, ideal for long-term horizontal or vertical storage. Thanks to their square shape they can be easily stored vertically or stacked horizontally; they allow access to contents without removal from the stack, through the front opening. The closure of the box is secured by two side caps with a central hole, one fixed with very thin velcro (approx. 1.0 mm), the other with tabs.