In a lot of online shops, you will find product listing pages, and product detail pages. The product listing pages usually contain a list or display of several or many products, each with a very short description.
You can usually click on the product on the product page to get to the product detail page for that product. In good shops, the product detail page will contain a full description of the product, including for instance how many pieces are in the pack.
Running an online quilt shop, we find that a lot of people don't know that you can get more information on any product in many stores by drilling down like this.