Tap Aerators.

Purpose: Tap aerators are small devices that attach to the end of a faucet spout. They mix air with the water stream, creating a more forceful and aerated flow.  

Benefits: Aerators help to reduce water consumption, conserve water, and prevent splashing. They also make the water stream more pleasant to use.  

Appearance: The aerators in the image appear to be made of metal, likely chrome-plated for a shiny finish.

Packaging: The aerators are packaged together in a plastic blister pack with the brand name "KAHRAMANA" prominently displayed.