This product is the Repti Zoo Mist Maker Fogger, an ultrasonic humidifier designed for reptile and amphibian terrariums. Function: It generates a dense mist to increase humidity levels and simulate natural environments like rainforests. Features: It comes with an LED light to illuminate the mist, creating a stunning visual effect. Safety: The device has an automatic shut-off feature when the water level is low to protect the pump. Usage: It can be placed directly in the water in a fountain or basin within the terrarium. There are 3 units, two have been unboxed and tested, and one is new. The price per unit is 75 SAR.