Adaptor For Trimmer Head

D E S C R I P T I O N: Universal Trimmer Head Adapter This is what you need to attach different types of blades to your string trimmer. It fits most model , fit for 520 ， 430， 140， 139， 411 S P E C I F I C A T I O N S: Gardening machine mower kit dimensions Counter tooth nut:  0.79 ” Cover: 3.15 ” Upper and lower pressure plate: 1.57 “