This Husqvarna Viking Serger is an air threading machine, meaning it threads the lower and upper loopers with a puff of air at the touch of a button. Super easy. It does 23 different stitches including several cover stitches which do the nice hem on knit materials such as t shirts and knit dresses. IT also does a chain stitch and 3 and 4 thread wide and narrow over lock stitches plus more. It is only 1 1/2 years old. This model is still sold new today. All accessories that came with the machine are included, as in the photos. including a knee pedal, tweezers, threader, allen wrench, cuttings catcher, instruction book, cover, larger working surface platform and quick start guide. I have also included a packet of lots of needles that are the recommended size and brand for the machine. It has just been serviced and cleaned.