Specification Brand : ArtToFrames BulletPoint1 : Mat is standard 4 ply material used in Custom Frame shops. BulletPoint2 : Made of lignin-free and pH-neutral materials. Fits into a(n) 20x23 Frame. BulletPoint3 : This mat will fit a 16x19 Photo. Actual opening size will be 15.75x18.75. BulletPoint4 : NOTE FOR ORDERS SOLD BY ArtToFrames ONLY: OPENING SIZE(s) MAY BE CHANGED BY CUSTOMER. Please include your desired opening size(s) by email, or through the contact seller link. If we do not receive a request for a custom size within 2 hours of your order it will be cut with the opening size listed above. Feel free to contact us with any questions you may have. BulletPoint5 : Dimensions - These photo sleeves have a 1/8" tolerance for the Trading Card Packs, 1/4" tolerance on both sides up to 13x19", and a 1/2" tolerance for Sizes 16x20" and larger. CareInstructions : Hand Wash Only Color : Smooth Black CompatibleDevices : Smartphone ConnectivityTechnology : USB ConnectivityTechnology1 : Wi-Fi ConnectivityTechnology2 : USB ControlMethod : touch CurtainForm : drapes CurtainHangingMethod : rod_pocket CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier : 8338701303000 ExternallyAssignedProductIdentifier1 : 709758699831 ExternallyAssignedProductIdentifier2 : 0709758699831 FinishType : Matte HumanInterfaceInput : buttons IncludedComponents1 : Christmas Curtain Lights IncludedComponents2 : White Backdrop Curtains with Lights IncludedComponents3 : White Backdrop Curtains for Parties IncludedComponents4 : White Tulle Curtains for Baby Shower Decorations IncludedComponents5 : Wedding Photo Backdrop ItemDisplayDimensions_Height : 20 inches ItemDisplayDimensions_Length : 23 inches ItemDisplayDimensions_Width : 23 inches ItemDisplayWeight : 1 pounds ItemName : 20x23 Smooth Black / Black Custom Mat for Picture Frame with 16x19 opening size (Mat Only, Frame NOT Included) ItemPackageDimensions_Height : 20 inches ItemPackageDimensions_Length : 23 inches ItemPackageDimensions_Width : 23 inches ItemPackageQuantity : 1 ItemShape : Oblong ItemTypeKeyword : photo-mat-boards Manufacturer : ArtToFrames Material : paper MemoryStorageCapacity : 16 GB ModelName : 2 ModelNumber : MAT-21-20x23-Black NumberOfBoxes : 1 NumberOfItems : 1 OccasionType1 : Mother s Day île OccasionType2 : Grandparents Day OccasionType3 : Wedding Shower, Wedding Anniversary, Wedding Reception, Wedding Ceremony OccasionType4 : Photo booth, Photography Opacity : Sheer PaperSize : 8 x 10" inches PartNumber : MAT-21-20x23-Black Pattern : Solid PowerSourceType : Battery Powered ProductDescription : In the past, Protecting your art from dust and dirt was a time-consuming and cumbersome project. Now, All you have to do is slip your art into these bags, and fold over the flap which has a resealable adhesive strip on it. In just seconds, your art is placed in a safe environment, and can be stored in a Storage box, flat file, portfolio, or print rack! These photo Storage bags are Made Of 2 mil polypropylene plastic, and will accept matted or mounted artwork. The Size range Includes All the traditional and modern Sizes including printmaking, drawing, and Watercolor Sizes. These plastic sleeves for artwork shun the need for shrink wrapping, and acetate film covering, and are far more Useful. The art can be removed for viewing, and placed back in the bag and resealed, giving repeated access while keeping out dust and dirt. These photo sleeves have a 1/8" tolerance for the Trading Card Packs, 1/4" tolerance on both sides up to 13x19", and a 1/2" tolerance for Sizes 16x20" and larger. These archival polyethylene bags are Available in a Variety of two pack options: 25 and 250. They are Available in 15 different Sizes ranging from 2.5x3.5", 4x6", 5x7", 6x8", 8x10", 9x12", 11x14", 16x20, and more. ProductSiteLaunchDate : 2010-10-28T21:37:48.677Z RecommendedUsesForProduct : Indoor Resolution : WXGA Seasons : All Season Size : 20x23 StreetDate : 2017-03-25T00:00:01Z Style : Custom SupplierDeclaredDgHzRegulation : not_applicable TargetAudience : Unisex Adult Theme : Romantic TopStyle : Rod Pocket UnitCount : 1