Based on the ever popular SCHMETZ ABC Pocket Guide, this app provides a comprehensive reference to SCHMETZ needles for household sewing machines. Includes updated color code information. This app helps you choose the correct needle for your sewing application. Increase your sewing skill by learning about the various types of needles available. Learn to spot the signs that it might be time to change your sewing machine needle. Use this app to sew better with SCHMETZ!