This extension kit lengthens your Ultimate Sweater Machine by thirty needles allowing you to make sweaters up to XXXL in two pieces and afghans up to 6ft wide in only one piece. Attaches to The Ultimate Knitting Machine in seconds, offers unlimited extendibility with one or more extension kits. This package contains one thirty needle extension bed, thirty needle weighted hem, needle indicator strip, nut and bolt and complete instructions. A Caron Limited Lifetime Warranty is included. Made in USA.