Our Multi Opening Picture Frames will hang Horizontally or Vertically. INCLUDES- White Matting offered in high quality acid free white face w/ black core ~ or ~ Black Matting offered in high quality acid free black face w/ white core Frame Grade Glass Face Multi opening collage mat with 4.75 by 6.75 cut-outs to hold 5x7 photographs. 1.25 inch profile Eco friendly MDF moulding made in the USA Frames Sizes : 2- 5x7 Opening with 10x12 inch collage mat measures 12 by 14 outside 3- 5x7 Openings with 10x20 inch collage mat measures 12 by 22 outside 4- 5x7 Openings with 10x24 inch collage mat measures 12 by 26 outside 5- 5x7 Openings with 10x32 inch collage mat measures 12 by 34 outside 6- 5x7 Openings with 10x36 inch collage mat measures 12 by 38 outside 7- 5x7 Openings with 10x40 inch collage mat measures 12 by 42 outside