. Great for quilting at home or on the go! Mountain Mist 2-in-1 Wool Pressing Mat offers all the flexibility you need for you quilting whenever you want to craft. This 2-in-1 mat is 18 in. x 24 in. with a 13 1/2 in. x 13 1/2 in. removable center. Simply remove the center for a smaller mat when traveling, and replace into the larger mat once home again. The mat absorbs heat so when pressing your quilt block shapes or sewing project, it's like pressing on both sides of the fabric at the same time. It's dense (1/2 in. Thick), tightly felted a must -have for every sewing/ quilting enthusiast