The new SwiftSmart(TM) Threading System is a revolutionary way to thread a sewing machine. With previous threading systems, sewers had to thread the spool, guide the thread down along the groove, then U-turn the thread, pull it up again, thread the take-up, and pull it down again to thread the needle eye. Now using the SwiftSmart Threading System, all sewers have to do is simply guide the thread from the spool to the needle via the groove at the front of the machine. Another Singer Curvy machine feature, the One Touch Needle Threader, will even pull the thread through the eye of the needle. There is no longer a need to go through a complicated threading process.more info