2 mil ultra clear polypropylene 4� � Polypropylene is an inert, archival quality, PVC-Free material Ideal protections against dust and moisture during handling and storage 100 per pack (114 � 152) 1350 � 1800 4:3 (1.3 - Sized for most consumer level digital cameras and Micro 4/3 cameras. Guardhouse Shield#: 636836681061. Size: 4 1/16 x 6 1/16. Color: Clear. Sold in Packs of 100. Case Qty: 10000 .