The Reverse-A-Rule Curve 1 Wave longarm template is designed for use with any brand of midarm and longarm quilting machine. It is easy to grasp and is designed to fit comfortably in a quilter's hand. Premium quality acrylic 1/4" thick ensures safety when used with a hopping foot. Patented 2-color foil process enables long last accuracy when quilting - use the black side for light fabrics and the yellow side for dark fabrics. Use to make 8" wave designs .75" or 1.5" deep. Overall dimensions are 8.75" x 3.5". Packaged in heavy duty protective bag. Made in the USA