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: 32*40",30*42",32*47",40*60" 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