Three different "Bollinger bands", which can be set individually. With this script, the "length", the "standard deviation" (StdDef), the "offset" and the "source" can be set for each band. The script is very clear. The basis of the script is the standard indicator "Bollinger Bands".
The script can be used for all markets and all time units.
Open-source script
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules.
You can favorite it to use it on a chart.
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.
