Sunbow arts & crafts manufacture co., ltd is a mat board, photo frame manufacturer in china. 1. Professional manufacture of frame and matboard for frame(pre-cut mat board, uncut matboard, collage matboard, etc.) 2. White core, black core, white cream core mat board. 3. Thickness: 0.8-3mm. 4. Size: 4x6", 5x7", 8x10" 11x14", 16x20" and other sizes are available. 5. Single layer matboard, double matboard, multi-layers, multi-openings. 6. Matboard can be used for paper photo frame, post frame, matboard crafts& arts, etc. 7. Components: decorative facing paper, core, back paper. 8. ODM and oem are welcome.