These Needles fit JANOME / NEWHOME MODELS: 104D, 134D, 203, 204D, 234, 234D, 303, 334, 334D, 434D, 534, 534D, 534DR SERIES II, 634D, 644D, 734D, 744D, 788D, 888, 1110DX, 3434D, 7034D, HARMONY9002D, HARMY 9102D, HF504D, HF3434D,

The SIZE of the Needles in this listing is:   #11-HAX1SP    (Metric Size 75)

This is a special version of the 15x1 for stretch or elastic materials and tightly woven knits. It is made to higher standards, it has the snake's head shape due to a combination of a slightly bulged eye and a slightly reduced blade above the eye. The bulged eye opens a slightly larger space in the material and the thinner blade above the eye reduces contact between the material and the needle . This reduces needle heat-up and prevents skip stitches.