... 3.5, 3.75, 4 ,4.5, 5 inch knit various sock Richrui computerized sock knitting machine (3-3/4″ plain and terry Dual-use)1 ... ,One main feed plus five pattern feeds.2,Possibility of 13 color plus ground or the same course.3 ... and cam control7,Pattern Depth up to 1,200 courses.8,Multiple stop motion sensors ... .Plain & Terry machine can produce the following:1- Various design socks2- Half terry3- Full terry4 ...