To make the wallet easy to use and not require any setup procedures, the Ballet wallet was purposely designed to not have a requirement to be backed up. This gives the product an added benefit where once the wallet has been loaded with cryptocurrency, it can safely and securely be given out as a gift, with the recipient knowing that the funds are safe as long as the wallet has not been tampered with.
As long as you keep the wallet passphrase and the encrypted private key safe and out of prying eyes, then your funds will be safe. Therefore, never share or disclose these two pieces of secret information with unauthorized parties. If you strongly feel the need to back up this secret information, then you can record and copy down your wallet passphrase under the scratch-off, and the encrypted private key under the QR code sticker.