Floor drains are a plumbing fixtures that are installed in the floor of a structure, mainly designed to remove any water near it. They can have various shapes but: round, square or rectangular. Depending on the type they can be used almost everywhere: in commercial basements, restrooms, kitchens, locker/shower rooms, laundry facilities or swimming pools. A floor drain got a strainer secured over it to prevent injury, entry of foreign objects, or introduction of unwanted pests into the facility. It is smooth enough that hair and other objects can't get stuck in it, clogging the drain.
Feel free to choose from very known brands like Wirquin, Devores or Plastbro below.