1Single cylinder one feeder into yarn or two feeder into yarn,6 colors in one line,there are 13 colors total in socks pattern.
2lt can knit high heel, big heel, small heel, 180degree against sock mouth.
3two colors for socks heels socks toes.
4Open circuit protect and UPS design, it will continue knitting after suddenly stop.
5Can buy two elastic finger for different colors.