Black ribbed square frame, don't like the color? alter it.
Outside measures 6-1/8 x 6-1/8 x 1-1/4" 
Inside 3-5/8 x 3-5/8"+ with only about 3/8" depth (less w glass)
Image area 3-1/8 x 3-1/8"
Great for a small piece of miniature artwork with or without glass (you supply), make a door or a lid on a box etc. You'll need to touch as needed.