<ul><li>Mat is standard 4 ply material used in Custom Frame shops. Matting material is Bainbridge mat board.</li><li>Made of lignin-free and pH-neutral materials. Fits into a(n) 7x11 Frame. Frame options can be seen in the accessories listed below.</li><li>This mat will fit a 3x7 Photo. Actual opening size will be 2.75x6.75.</li><li>NOTE: 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.</li></ul><br><br>Fits a 7x11 Frame, and a Photo 3x7. For custom cuts and designs please reference !~Product SKU # - - MAT-754-7x11~"

7x11 Porcelain Custom Mat for Picture Frame with 3x7 Opening Size