# `Stripe.Params.Checkout.SessionCreateParams.PaymentMethodOptions.Card.Restrictions`
[🔗](https://github.com/jeffhuen/tiger_stripe/blob/main/lib/stripe/params/checkout/session_create_params.ex#L1399)

Nested parameters.

# `t`

```elixir
@type t() ::
  %Stripe.Params.Checkout.SessionCreateParams.PaymentMethodOptions.Card.Restrictions{
    brands_blocked: [String.t()] | nil
  }
```

* `brands_blocked` - Specify the card brands to block in the Checkout Session. If a customer enters or selects a card belonging to a blocked brand, they can't complete the Session.

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*Consult [api-reference.md](api-reference.md) for complete listing*