Spring Knits. A Circular Knitting machine pattern book by Nicola Allison is the perfect book for those who want to make beautiful and creative animal-themed knits using their circular knitting machines. This beginner-friendly book provides step-by-step instructions and 8 adorable patterns inspired by the spring season. Basic knowledge and experience of using a circular knitting machine is required to create these fun and charming knits that are perfect for any level. Machines needed to complete the patterns in this book: 22 pin, 46 or 48 pin (and for just 1 of the patterns a 4 pin i-cord machine is needed too).