Approx W  12 x  H 13.5  with 2 inches box bottom. 

this is not interfaced as the canvas is sturdy with a slight flop, it is lined with 100% cotton inside. This bag also has an inside welt pocket to store your notions with your project and is a great size for the medium size projects ( shawls or small human garment). There is a key ring handle inside to clip on other items so it's easier to find them. 

This is a drawstring closure. 

Birds and floral canvas with silver