I have used the foot for binding and love it!
Your embroidery module will say THANK YOU!
Makes my buttonholes look extra nice.

The looper threads are magically moved through the machine by air with one simple step on the foot control. Now both hands are free to guide the threads. The L 850 automatically sets the loopers in the correct position of the air threader – no turning the handwheel or searching for the right position.