21x33 Cinder / Charcoal Custom Mat for Picture Frame with 17x29 opening size (Mat Only, Frame NOT Included)

21x33 Cinder / Charcoal Custom Mat for Picture Frame with 17x29 opening size (Mat Only, Frame NOT Included)

• Mat is standard 4 ply material used in Custom Frame shops.
• Made of lignin-free and pH-neutral materials. Fits into a(n) 21x33 Frame.
• This mat will fit a 17x29 Photo. Actual opening size will be 16.75x28.75.
• 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.