This is in excellent condition, and measures 6 3/4" wide X 5 3/4" high. This has expanding "accordion" sides as shown so the depth measures 1 1/2" - 3 1/2".  The strap has a 2" drop, and as you can see inside there are two loops if you want to attach a strap.   Please look closely at my photos for details.  Item 1810L