You can leave it on the handle while cooking on low but please be cautious of a large open flame.
Inside Dimensions are 4 1/2" Long x 1 1/2” Wide
Made to fit on small, medium and large cast iron skillets.
Machine wash warm, tumble dry low.
Pattern placement may vary
Made with Quilted Therma-Flec which is a heat resistant batting and 100% cotton material.