Now, let us make a form to place a magazine subscription online. First, let us add a simple Email field to our form.
Next, we add a Checkbox field which allows users to select the type of subscription they want.
In the Options box of our checkbox field, we enter our subscriptions in this format:
basic_plan==Basic Plan – $9.99 / month
Here, the part to the left of == is the plan ID assigned to the item, and the part to the right of == is what the user sees.
![plan_2](http://formcraft-wp.com/wp-content/uploads/2015/04/plan_2.png)
Also note the field ID of this field. In this case, it is field30
Where to find the Plan IDs?
Go to your Stripe Dashboard, and head over to Billing -> Products. You will see a products section here with a list of the pricing plans. Click on a plan and you should be able to see the ID on the next page.