Efalock universal-diffusor is an additional attachment for a hair dryer, that diffuses the air from the hairdryer to evenly dry your hair. It dries long, Curly and wavy hair in an especially careful way. It secures retention of the diffuser on the hairdryer using a universal catch with metal Spring. It fits on all standard hair dryer models. It has 9 fingers. Diffusor diameter: 13.5 cm.