EASY TO USE - Print your favorite photo or text on the patch surface (don't tear off the paper from the back of patch, 400°F for 30s,), then position it where you like, cover it with a cloth and preheat your iron, iron the patch for about 30s (tear off the paper from the back of patch, 285°F for 30s), it will be quickly stuck because of its high temperature glue on the back, iron again on surface for 10-20 seconds to fix it. You can also sew it by machine or by hand for some heavy fabrics that can't be ironed. Patch in round shape, is approx. 2.37 x 2.37 inches.