Jeans Needles - Size 90 Tip The middle ball tip displaces fabric threads and pierces the spaces between them. This makes it easier for the needle to penetrate through solid, thick fabrics without damaging the material. In addition, a lower puncture force is required, which leads to less needle breakage. The special shaft design ensures high needle stability and thus reduces needle breakage and false stitches. Suitable fabricsFixed , thick fabrics: Jeans Twill Canvas ; Available needle thicknesses NM 90, Assorted ; CoatingStandard Needle tip center ball tip Special featuresPecific shaft design Color markingBlue