Craig Frames 21834700BK 9 by 22-Inch Black Picture Frame, Single White Collage Mat with 13 Openings Celebrate and display your cherished memories with our framed collage mats Complete collage kit includes: picture frame, white matting, acrylic facing, cardboard backing and hanging hardware Matting has 13 openings - (12) openings for 2.5 by 3.5-inch photos /(1) opening for 5 by 7-inch photos (actual opening sizes: 2 by 3-inch / 4.5 by 6.5-inch) Frame moulding is 2 inches wide; black; smooth wrap finish; wood composite material Matting is .05 inches thick; white with cream core; pH neutral; bevel cut openings