The handle is made of natural solid walnut, which is characterized by anti-scalding. The handle part is equipped with a water retaining device to prevent backflow of water vapor. The nylon brush head is high temperature , detachable, replaceable, easy to install and easy to operate. The steam vent pipe is made of high temperature silicone material, moderate hardness, , safe and secure. There is a heat dissipation device inside the handle, which has a fast heat dissipation effect. PS:This steam brush is suitable for most commercial and household machines. The nozzle diameter is less than 10MM and cannot be used. Please confirm whether the nozzle size of your machine is suitable before purchasing.