[UV Color Changing Vinyl]The more UV rays,the darker the color.A cool DIY gift is also a great choice for family and friends on birthdays, anniversaries, graduations, weddings! (Tip:You can distinguish the colors under the light before using UV color changing vinyl.) Vinyl heat transfer can be used to customize T-shirts,hats, bikinis, canvas bags, pillows,parent-child wear,team or club wear.When you share this surprise gift with your family and friends, you will definitely get their compliments [How to Use]Follow the steps below to enjoy DIY! 1. Design your favorite pattern, such as shapes of animals, plants, , letters, numbers, etc. 2. Use the machine to cut the HTV vinyl bundle and use the tool to remove the excess vinyl. 3. Put the engraved pattern on the clothes, heat press at 150 for 15-20 seconds, and finally tear off the protective film to complete. Whether you are a beginner or a professional, please enjoy your time! [High Quality Vinyl]HTV heat transfer vinyl bundle is made of environmentally friendly pu material with good stretchability and flexibility. The printable iron-on vinyl is smooth, waterproof, strong, and easy to cut, weed and peel. You can hand wash or machine wash, it will not fade, peel or crack after repeated washing. When machine washing, please wash the clothes reversely or use a protective bag. (Please wait 24 hours before washing) [Warm Service]It is not suitable for down jackets, windbreakers and other fabrics with waterproof coating. Material: PU size: 30x25cm colour:Light turns purple Package Contents: 1 x PU thermal transfer film Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.