All of our products are produced with digital printing techniques. Organic pigment dyes are used in production process.Not used solvent dyes in the production. Stickers doesn't contain carcinocen substances They're extremely easy and simple to use. You don't need any other adhesive. You can adorn the interior walls and windows of your home, bathroom, office, nursery, dorm, or store. Get creative and apply them to walls, furniture, such as your refrigerator, table, desk, kitchen cabinets, drawers, etc.Clean with a soft and damp cloth.