Studio Fifty One stickers are waterproof and weatherproof, so you can stick them anywhere that's smooth and flat - on your laptop, notebook, kindle, phone, water bottle, etc. Perfect for adding a touch of personality and relatability to your everyday items. Don't worry about the elements - our stickers are built to last. (And they're pretty darn cute too!) Please keep in mind that while standard, domestic mail is said to take between 2-5 business days, sometime there are unseen delays. There is no tracking on regular letter mail so the "tracking" you see is not accurate and, therefore, it may appear that your order has been delivered before it actually has. There is no shipping estimate for international orders and they are not tracked either so please be patient. Once I have put your order in the mail, it is out of my hands and, unfortunately, I will not know any more information than you do. Custom sticker designs, including pet/people portraits and names, are available!