COMPARE: On the left: 3 SENCH needles. On the right: 3 Spiral Eye Needles
Note: the “Stop Bump” inside of the Spiral Eye Needles. It helps lock the thread inside and makes the needle stronger at the opening.
Also, note…the SENCH needles have a gold eye…which helps to identify which end has the eye and which end has the point.
Patent # US 8,151,720 B2 Patent # Canada 2,755,302 Patent # Europe 2,406,419