Picture frame acid free archival matting for a 16x20 frames with 2 windows designed to hold 4x4, 4x6, 5x5, 5x7, 6x6, 6x8, 8x8, 8x10 or 8x12 pictures - available in various colors at Frame It / Waban Gallery
Acid free archival matting for a 16x20 picture frames with 2 windows
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