Addi knitting machines are great for beginners looking to use up extra stash yarn and make fun projects! Addi knitting machines are circular and can make small hats, scarves and other knitting projects quickly and efficiently. The Addi Express machines come in two sizes: Addi Express and the larger Addi King Size version which is more appropriate for adult sizes hats and larger garment projects. Note: Although these machines look similar to sock knitting machines they are not and will not work for socks but are great for many other types of projects. The Addi machines are reasonably priced and a great choice for your first knitting machine.