What to look at here: Minimum is 1 and the quantity moves in steps of 0.5, so 1.5 or 2.5 are allowed.
This is a product with decimal quantities, you can purchase in 0.5 of a unit.
Decimal quantities can be defined using minimum or step or allowed quantities.
This product has a minimum of 1 and step of 0.5, so customers can place orders with 1.5, 2.5, and so on.
