Clamshell box for ring binder storage

The clamshell box is designed with self-locking tabs, constructed from a single board sheet, with two finger holes (grip holes) on the spine. The box is closed (shut) using a press-down button. The spine label, which is made from archival paper, is stuck on to the spine using hot animal glue. Clamshell boxes have over the years proven very successful for the upright storage of ring binders, file folders, loose sheets and paper documents. They are made from ageing resistant solid board material, 1.3 mm thick, grey-blue/natural white in colour, smooth and dirt-resistant (erasable) due to special surface strengthening, manufactured in accordance with ISO 9706, Photographic Activity Test (PAT) passed successfully.

Size: int. dimensions 348 x 277 x 60 mm ; ext. dimensions 351 x 284 x 65 mm

Material characteristics: ageing resistant material in accordance with ISO 9706, 100% bleached cellulose, free of wooden fibres, pH value 8.0 – 9.5 = acid-free (in accordance with ISO 6588-1-2005), alkaline reserve (buffer) > 3 % natural calcium carbonate (GCC), sizing neutral/synthetic (without alum additive), grey-blue/natural white.

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