Saji

Mahdi Yazdani

MyPreview

This plugin designed with extensibility in mind for data that should be associated with a particular block type but need not have any defined meaning. <code>data-*</code> attributes will allow you to store extra information on different Gutenberg blocks, without other hacks such as non-standard attributes, appending properties on DOM, or modifying a block as HTML which will throw a block validation error when opening the post edit page once again.

Block Data Attribute

Saved me from having to build it myself. Surprised this still isn't built into native block functionality. Thank you!

Time saver

This plugin designed with extensibility in mind for data that should be associated with a particular block type but need not have any defined meaning.

Andrei Zobnin

This plugin returns the option to choose a product attribute type, which was removed from WooCommerce 3.3. With this plugin you can use select/text/number/textarea type.
WooCommerce requires at least: 3.6

Text Attributes for WooCommerce

Allows you to type attribute values in the input field instead of choosing from the drop-down list.

Block Data Attribute vs Text Attributes for WooCommerce