Archival quality protection made especially for PCGS and NGC coins. Both the lid and the box itself are lined with Corrosion Intercept. The box securly holds 20 PCGS or NGC encapsulated coins. Note that this box does not have the inner boxes (like the double protection boxes) but that the coins cannot move around inside the box because they are held firmly in place by tracks along the sides. These boxes are similar in size to the plastic boxes sold by PCGS and NGC but with the added protection of the Intercept Shield technology. Box dimensions are 3-1/4" wide by 3-5/8" tall by 9-1/4" long. Intercept Shield acts as a neutralizing agent cleansing the air around the coin protecting it from the harmful effects of corrosion. Buy by the case of 24 and save even more.