Wisamic 2 Pack Stihl 25-2 Replacement Trimmer Head for Stihl Autocut Go 25-2 Fs44 Fs55 Fs80 Fs83 Fs85 Fs90 Fs110 Fs130 Easy to reload trimmer line. Uses a 25-2 blade type. Standard diameter of 0.095-inch Slotted eyelets Built to strict quality control standards Product diameter 12cm, Weight:0.4Kg, This trimmer head is an aftermarket replacement for the Stihl Autocut 25-2, 4002 710 2191, and 4002 713 9608. It is not an original Stihl trimmer head. Please kindly note this before your purchase.