Simple covers with inner flap, made in acid-free cream paper, with neutral pH, with 120grs / m2.
 Acid-free paper, with calcium carbonate reserve, according to ISO 9706, passed the PAT
 Available in the following sizes: 32x22 + flap, 36x25 + flap, 42.5x30.5 + flap, 22x15.5 + flap.
 Sold in packs of 50 or 100 units.