Printed using high quality PVC material with high grade silk screen formula with lightfast inks and laminated to the surface. Virtually colorfast for over 5 years. When you want this product to be removable stickers, please cut it out to the shape of the sticker after sticking it to a magnetic sheet (paper magnet) sold at a hardware store or at a 100 yen shop. You can make several types of removable stickers and change them according to your mood of the day. All products from the Miyahara Patent Office are free of charge all over the country.