You can use the Services section to add products to your Solo website by following the steps below:
- Visit the designer
- In the top toolbar, click [Sections]
- In the Sections right sidebar, click [Add section]
- Double click the [Services] section in the modal to add it to your website
- In the designer area, scroll down to the Services section, and hover over the section
- Click [Edit section]
- In the Services right sidebar, you can click [Add Service] to add new products to your website

You can edit the existing services (images, description, and button text) and also point to a buy or payment link (e.g. Stripe or Paypal) for each product.
Note, Solo allows you to add up to 24 services or products. Alternatively, you can also use a Text Banner section to feature a single product or the Article section if you want to provide a lot of detail about a single product.