Needle system : 29X4 (Leather Point Needles). Organ 29X4 needles are available in following sizes. ® Leather Point Needles for Singer 29, 29-4, 29K and 29U Class Sewing Machines. Leather needle has the shape like a wedge at the point which gives it superior piercing power for unyielding fabric such as real leather, suede or heavy vinyl.
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