Pinit POLYESTER (Mylar) Sleeves 13-1/2 x 19-1/2". 4 mil. NO flap. Use for 13 x 19" Photos, Prints and Posters. Indefinite storage. SKU: S1319R-A 2Reviews Add to Shopping Cart Details Museum Grade Polyester (Mylar) Sleeve13-1/2 x 19-1/2" 4 mil. No flap.Archival. Crystal clear. Passed the Photo Activity Test (P.A.T.) Indefinite sto... Details Back DetailsMuseum Grade Polyester (Mylar) Sleeve13-1/2 x 19-1/2"4 mil. No flap.Archival. Crystal clear. Passed the Photo Activity Test (P.A.T.) Indefinite storage.Use for 13 x 19" Photos, Prints and Posters Reviews 4.5 Back Ratings & Reviews 2 Reviews 5 stars 1 reviews 4 stars 1 reviews 3 stars 0 reviews 2 stars 0 reviews 1 star 0 reviews Filter By DateBy RatingAll Reviews5 Star Reviews4 Star Reviews3 Star Reviews2 Star Reviews1 Star Reviews There are no reviews available for your selection