What is a kit?
A kit is an SKU composed of one or more SKUs. SKUs that make up a kit are called components.
In a standard kit, the products are sold together, ie they can not be offered for sale separately. This means that in a "Beach" kit consisting of the SKUs "Trunks" and Towel, the customer will only be able to purchase the SKUs together.
However, you can also choose another kit mode, called Kit Look, in which component SKUs are displayed together, but can be sold separately.
In both cases, the kit SKU will consider the component stocks and the SKU price of the kit.