Hemline Stretch Machine Needles - Medium 75/11. 6 needles with red tops for easy identification. Sizes | 75/11 Suitable for knit fabrics with 2-way stretch, those containing elastane, rubber in swim wear and lingerie and for sewing elastic. Use with polyester thread. Suitable for all modern sewing machines System | 130/705h, 15 x 1, HA x 1