Firstbeat Life service includes 1 electrode bag (30 electrodes) in every three months. Delivery of additional electrodes provided for the service is free of charge.
You can order additional electrodes straight from the Firstbeat Life application. Open the Profile -page and select Settings - Subscriptions, example picture below
The application opens a separate order form where you can fill in the delivery address for the electrode order. The estimated delivery time for an electrode order is approximately 1-2 weeks.