use some water and just straight up slap it to your window. its awesome. super easy to use, definitely get more than what you think you need though, i ran out halfway. does more of an all over aurora effect rather than shards of light, its really pretty. 10/10 will be buying again
I purchased to TeckWrapCraft Printable Heat Transfer Paper to use on Cotton shirts with images that I could print. I love the product! It has expanded my options to make shirts quickly and with products that are already available to me in my craft room.