PVC soft fan blades are safe to use and the gooseneck is flexibly bent. Gently adjust the flexible neck to the position you need to keep cool in any position ^^ Ideal for desktops and laptops, simply plug in any USB port on your laptop or PC without installing a driver ^^ Gently adjust the flexible neck to positon the cool breeze anywhere you wish ^^ The Temperature clock fan is a USB fan with a special blade that creates an LED clock face