You have complete control over exactly which product details your client can see.

From the "Product List" section (found below the design board), click the [ Manage What Client Sees ] button to see which options you can hide or reveal:

You have the option to hide or reveal the following items:

Once you've made your desired selections, you can then click "Apply settings to all project design boards" to save these same settings across all existing design boards in the project.
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From there... click the [ Preview Project as Client ] button to double confirm the correct information is showing.