Size in title is the size on the longest side. Example: 15cm long length and width are 15cm. Cutting stickers are made of vinyl tape like vinyl tape that only leaves the image when applied to cars, motorcycles, computers, surfboards, skateboards, etc. 3-5 years outdoor water resistant. Please feel free to message us if you wish to change size or color changes. If you order more than 11.8 inches (30 cm), we will ship the package in 60 sizes, so you will receive a plus charge. We also accept orders with iron-on print (which can be transferred to fabric products such as t-shirts, hoodies, bags, etc.) Feel free to message us.