# Make the most of RCS with Carousels

Once you set up your[ Conversation API channel](/channels/sinch-conversation-api-beta/configure-your-sinch-conversation-api.md), you can make the most of your RCS capabilities inside of [**Carousels**](/buildabot/flow-logic/dialog-state/message-components.md#carousel) steps.

<figure><img src="/files/wzkxBll6NBfWtbph7VQN" alt="" width="375"><figcaption></figcaption></figure>

## Unlimited characters limit

Chatlayer doesn't enforce character limit in **Carousels** anymore, so that you can write as much as your channel allows. What you will see is the number of characters that you already entered.

{% hint style="warning" %}
Bear in mind the character limits of the [channel](broken://pages/9JjXzp8RQyrOoYDemwrm) that you are using.
{% endhint %}

## Optional images

Images in **Carousels** are now optional. You don't need them to make a Carousel card anymore.

## Variables inside buttons

You can now use [**variables**](/navigation/settings/secure-variables-gdpr.md) inside your **Carousels** buttons.

<figure><img src="/files/tR6MVm4PT7LebuijNbCw" alt="" width="375"><figcaption></figcaption></figure>

## Card sizes

You can now configure the card size of your **Carousel card.**

<figure><img src="/files/t0dZtgFn3cKlso9J6VOe" alt="" width="375"><figcaption><p>Configure the card size of your carousel, for each card.</p></figcaption></figure>

{% tabs %}
{% tab title="Short" %}
The **Short** card size will appear like this:

<figure><img src="/files/ImzuQRBlwTzsvUTjgBI4" alt="" width="270"><figcaption></figcaption></figure>
{% endtab %}

{% tab title="Medium" %}
The **Medium** card size will appear like this:

<figure><img src="/files/lDlq2aW8XdtZII2MAPpL" alt="" width="268"><figcaption></figcaption></figure>

{% endtab %}

{% tab title="Tall" %}
The **Tall** card size will appear like this:

<figure><img src="/files/pa7VZ3Ba7jtelEGlR0RG" alt="" width="264"><figcaption></figcaption></figure>
{% endtab %}
{% endtabs %}

{% hint style="success" %}
Note that Carousels are not only available for the [RCS](/channels/sinch-conversation-api-beta/configure-your-sinch-conversation-api.md) channel, but also for Viber bot, Instagram, and [Facebook Messenger](/channels/all-channels/facebook.md). Although Facebook Messenger only allows short and medium card sizes.
{% endhint %}


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