At Groz-Beckert, quality as an issue begins long before the production process. It plays a major role in the selection of materials. These are high quality needles are multi directional needle with a TITANIUM nitride finish. Titanium needles for use with HQ 16 or other Long Arm Machines, that needs a round shaft needles. Titanium means SHARPER needles with a longer life , this means more quilting.