Products options such as weight, price, tax class, and shipping, are natively integrated in Website Builder Ecommerce for all product descriptions.
What's even better is that you can easily create as many custom options as you want. For instance, you can offer any number of additional options such as colors, sizes, etc. with all your products.
Once created, these options appear automatically on your product landing page, and can easily be set to modify standard product weight and final product price.