Measuring 27" x 21.75", this fully-lined pieced bag has a pocket that will hold your 6" x 24" ruler & the 23.75" x 17.75" mat as well as a front pocket for the 12.5" square. Complete with square corners & shoulder handles, this bag also has inside pockets for your other sewing necessities such as books or glasses with plenty of room for your iron, fabric & ironing pad. This bag will take you to class or anywhere else a quilter may want to go!