Made of 10-gauge crystal clear plastic front and back Made of 10-gauge crystal clear plastic front and back Outside Dimensions: 8 1/2" x 11" Holds 18 glass slides (1" x 3" slides), loads from the top 3-hole punched to fit in standard binders Designed to be used in hospitals and by medical professionals Made of 10 gauge crystal clear plastic front and back. Outside Dimensions: 8 1/2" x 11". Holds 18 1" x 3" glass slides - loads from the top. 3-hole punched to fit in standard binders. Designed to be used in hospitals and by medical professionals. --- --- StoreSMART brand on Amazon: there are many sizes of self adhesive pockets, non-adhesive pockets and job ticket holders. Use for business cards, CDs, in binders and more. These pockets are ideal for adding important personalized information to your reports, documents, presentations and proposals.