Archival quality manila caliper .015. Four flaps are scored at two extra half inch intervals to accommodate bulkier specimens. Shipped folded. 12 x 17″. Archival Quality Manila Caliper .015 Our manila acid-free genus covers are manufactured to a pH of over 8.0 and are buffered with calcium carbonate. They have excellent folding qualities and should last hundreds of years. 50 per Carton. But, sold as 100 per unit.
