addi-Express Professional Knitting Machine The addi-Express Professional features 22 needles Circular knitted items -  10 to 15 cm (4" to 6") Plain knitted items - 15 to 20 cm (6" to 8") wide You can use nearly all kinds of yarns, recommended yarn thickness 3.5 - 8 Designed and manufactured in Germany to exacting standards and using finest materials available