Sewing Creative Grids non slip rulerNon Slip Multi Size Curved Corner CutterCreative Rounded Corners on your quiltseasy to read markingsNon Slip Embedded Gripper DotsUse this simple tool to create curved corners on your quilt or projects. There are three different sizes of curves to choose from. Each curve is a quarter of a 1 1/2"; a 2" or a 3" circleCGRCCC