# 💡How to add size system and size type?🤔

To add or modify the size system and size type for a product, open the desired product in the feed, and scroll down to the "**Detailed Product Characteristics**" section. Here, you’ll find options for **size system** and **size type**, which you can easily update. Once you've made the changes, click on "**Save**" to apply them. For more information, you can learn more about [size system](https://support.google.com/merchants/answer/6324502) and [size type](https://support.google.com/merchants/answer/6324497?hl=en\&ref_topic=6324338\&sjid=1468446007635917742-EU) attributes.

<mark style="color:red;">**NOTE:**</mark> <mark style="background-color:yellow;">You can also apply these changes through bulk editing for selected products.</mark>

<figure><img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXeP7D69WTJySh3oXnF7KUDKUmLqm5Dfa9eU-IzBwPYLg_x4xMxyt2S_fDqhPFjd_vkeSt-fiueH8JlxwUyRUZOxTJ-a2UA1LhqKIVkuOJ3D6UlpeP0WUmgJy5Mg7obFCPzI2r6Bz-G5Mi502P4mvE_D3JVx?key=ZjRnmer1HVEsSLnsCLcGMA" alt=""><figcaption></figcaption></figure>

The changes you make will automatically be reflected in your **Google Merchant Center**, ensuring consistency across your product listings.

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