Made from 2 mil thick Mylar D®. Dimensions are width x height plus flap. Flap can be folded over, tucked in, or taped closed.
The 2 mil sleeves are twice the thickness and 4 times the protection of 1 mil thick bags. The most popular Mylar sleeve.
Protection from Humidity
Protection from Volatile poly bag breakdown
Protection from Acid migration
Protection from Oxygen decomposition
Protection from Insects
Sold in Packages of 50
Current - 7 x 10 ½
*Basic Demention of a Standard Comic – 6 5/8 x 10 1/8