In Magento, there are different types of products you can create. The standard product is a simple product. This type of product is used to sell basic products. However, there are other product types where you can choose options or a size.
We will create a configurable product. For example, you want to buy a pair of shoes where you can choose their size and color. Open your backend and navigate to Catalog | Manage Products.
In the following steps, we will create a product (shoes) where we can specify their sizes on the product detail page:
Choose the following configuration when you hit the Add Product button:
When we click on Next, we have to choose the attributes to configure. This product has to be configurable on the Shoe size attribute. Select the checkbox and click on Continue.
Fill in the required attributes, and save the product by clicking on Save And Continue Edit.