Hey @Sudie. You can find spare parts for your device on Ring.com and under the accessories page. You can find the manual if you search for it on Ring.com/help. If you'd like and tell me what device you have, I can give you links to both the spare parts page for your device, and to the manual.
Like my answer? Accept it as a solution (click on the 'Accepted Solution' button next to reply). Learn more about the Community, here.