Spray caps are typically used for thin liquids that are packaged in glass or plastic bottles. They come in various silhouettes with slightly different functionality. Push sprayers typically dispense a fine mist, while trigger sprayers dispense bigger droplets. Typically stock color options of white, black, or clear.
Inside a spray cap are various components to make the pump mechanism including a metal spring and various plastic parts. Since they're made from a combination of different materials, pump caps can not be recycled unless they're deconstructed. To give them a longer life, encourage reuse by letting customers opt out of spray caps on reorders.