Selecting the correct needle for your project is just as important as selecting the fabric, thread and stabilizer. There are different sizes and types of needles for different types of fabric. The European metric sizing system for sewing machine needles is numbered from 60 to 110. The American sizing system is numbered from 8 to 18. For both sizing systems, the lower the number the finer the needle and the higher the number the larger the needle. Most needle companies show both sizes on the package. A good rule of thumb to keep in mind: the lighter the fabric the smaller the needle size and the heavier the fabric the larger the needle size. Many times the thread you will be using for your sewing project will also determine the type of needle you choose. For example, when using a fine, delicate thread, be sure to use a smaller needle size.