A Bit About Hand Sewing Needles ...
Wikipedia defines a sewing needle, used for hand sewing, is a long slender tool with a pointed tip at one end and a hole (or eye) at the other. The earliest needles were made of bone or wood. Needles can be traced back to 28,000 BC with a slit for the eye used with raffia or gut. Needles now are manufactured out of high carbon steel, nickel, 18K gold plated, titanium alloy and platinum. Basic "rule-of-thumb", the higher the number, the smaller the needle. So a size 2 needle will be larger that a size 7.