Conservation quality matting will help protect your art and photos for years to come. This mat will work for two of your larger photos and 11 smaller photos or art. The largest openings will fit 8x10" photos or artwork. The smaller openings will with 2x3" photos. Colors: Bright White, Light Grey, Medium Grey Grey, Soft White, Pink, Cream, Red, Kelly Green, Spring Green, Forrest Green, Silver Blue, Royal Blue, Sky Blue, Navy, Brown, Tan, Charcoal, Gold, Silver, Black, Yellow CHOOSING THE CORRECT MAT SIZE When purchasing a mat for a picture frame be aware that your standard frame should measure at least 1/8” larger than the size of the mat you purchase. In other words an 11 x 14” frame should actually measure at least 11 1/8” x 14 1/8”. You mat will measure 11 x 14”. In addition there is a 1/16” allowance on the mat so it can measure 10 15/16” x 13 15/16” up to 11 1/16” up to 14 1/16” and still fit in your standard frame. Some less expensive frames may not have the allowance so you would need to ask for a size that is at least 1/8” smaller than the opening on the frame itself. Mats are cut one by one for you so not returnable. If you have a problem let us know and we will see what we can do to help you.