1. Forbbiden to clean the inner parts of the monocular or disassenbly the monocular.
2. Caution: Do not allow using the monnocular to watch the sun directly! Use the monocular to watch the sun will causing incurable injure to human eyes.
3. There are two option: Cheaper one don't include a holder and expensive one have included a holder. Please know before buy. More details you can see from the attached video: